DAY – 48 : Insta 75 Days Revision Plan-2025 : GEOGRAPHY

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• Question 1 of 30 1. Question 1 points Consider the following statements: Statement-I: The Strait of Hormuz is a critical maritime chokepoint, the closure of which could significantly disrupt global energy markets. Statement-II: The strait provides the only sea passage from the Persian Gulf, a region containing a large percentage of the world’s proven oil reserves, to the open ocean. Which one of the following is correct in respect of the above statements? (a) Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I (b) Both Statement-I and Statement-II are correct, but Statement-II is not the correct explanation for Statement-I (c) Statement-I is correct, but Statement-II is incorrect (d) Statement-I is incorrect, but Statement-II is correct Correct Solution: A Statement-I is correct. The Strait of Hormuz is widely recognized as the world’s most important oil chokepoint due to the large volume of global oil supply that transits through it daily. Any disruption or closure would severely impact global oil prices and energy security. Statement-II is correct. The strait connects the Persian Gulf with the Gulf of Oman and the Arabian Sea (leading to the open ocean). Major oil-exporting countries of the Persian Gulf rely heavily on this route for their shipments. This geographical reality is the fundamental reason for its strategic importance mentioned in Statement-I. Statement-II directly explains why the Strait of Hormuz is so critical (Statement-I). Its unique geographical position as the sole maritime outlet for major oil producers makes its potential closure a significant threat to global energy markets. Incorrect Solution: A Statement-I is correct. The Strait of Hormuz is widely recognized as the world’s most important oil chokepoint due to the large volume of global oil supply that transits through it daily. Any disruption or closure would severely impact global oil prices and energy security. Statement-II is correct. The strait connects the Persian Gulf with the Gulf of Oman and the Arabian Sea (leading to the open ocean). Major oil-exporting countries of the Persian Gulf rely heavily on this route for their shipments. This geographical reality is the fundamental reason for its strategic importance mentioned in Statement-I. Statement-II directly explains why the Strait of Hormuz is so critical (Statement-I). Its unique geographical position as the sole maritime outlet for major oil producers makes its potential closure a significant threat to global energy markets.

#### 1. Question

Consider the following statements:

Statement-I: The Strait of Hormuz is a critical maritime chokepoint, the closure of which could significantly disrupt global energy markets.

Statement-II: The strait provides the only sea passage from the Persian Gulf, a region containing a large percentage of the world’s proven oil reserves, to the open ocean.

Which one of the following is correct in respect of the above statements?

• (a) Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I

• (b) Both Statement-I and Statement-II are correct, but Statement-II is not the correct explanation for Statement-I

• (c) Statement-I is correct, but Statement-II is incorrect

• (d) Statement-I is incorrect, but Statement-II is correct

Solution: A

• Statement-I is correct. The Strait of Hormuz is widely recognized as the world’s most important oil chokepoint due to the large volume of global oil supply that transits through it daily. Any disruption or closure would severely impact global oil prices and energy security.

• Statement-II is correct. The strait connects the Persian Gulf with the Gulf of Oman and the Arabian Sea (leading to the open ocean). Major oil-exporting countries of the Persian Gulf rely heavily on this route for their shipments. This geographical reality is the fundamental reason for its strategic importance mentioned in Statement-I.

• Statement-II directly explains why the Strait of Hormuz is so critical (Statement-I). Its unique geographical position as the sole maritime outlet for major oil producers makes its potential closure a significant threat to global energy markets.

Solution: A

• Question 2 of 30 2. Question 1 points Which one of the following sets of characteristics is most representative of the Mediterranean Climate? (a) Hot, rainy summers and cool, dry winters; dominated by convectional rainfall. (b) Warm to hot, dry summers and mild, rainy winters; influenced by shifting pressure belts. (c) Cool, short summers and long, severe winters with light precipitation throughout the year. (d) High temperatures and heavy rainfall distributed evenly throughout the year. Correct Solution: B The defining characteristic of the Mediterranean climate (Köppen classification Cs) is the seasonal shift in precipitation: summers are typically hot and dry, while winters are mild and wet. This pattern is primarily caused by the seasonal migration of subtropical high-pressure belts and the Westerlies. In summer, the subtropical high expands poleward, bringing stable, dry conditions. In winter, the high retreats equatorward, allowing mid-latitude cyclones associated with the Westerlies to bring moisture and precipitation. Incorrect Solution: B The defining characteristic of the Mediterranean climate (Köppen classification Cs) is the seasonal shift in precipitation: summers are typically hot and dry, while winters are mild and wet. This pattern is primarily caused by the seasonal migration of subtropical high-pressure belts and the Westerlies. In summer, the subtropical high expands poleward, bringing stable, dry conditions. In winter, the high retreats equatorward, allowing mid-latitude cyclones associated with the Westerlies to bring moisture and precipitation.

#### 2. Question

Which one of the following sets of characteristics is most representative of the Mediterranean Climate?

• (a) Hot, rainy summers and cool, dry winters; dominated by convectional rainfall.

• (b) Warm to hot, dry summers and mild, rainy winters; influenced by shifting pressure belts.

• (c) Cool, short summers and long, severe winters with light precipitation throughout the year.

• (d) High temperatures and heavy rainfall distributed evenly throughout the year.

Solution: B

• The defining characteristic of the Mediterranean climate (Köppen classification Cs) is the seasonal shift in precipitation: summers are typically hot and dry, while winters are mild and wet.

• This pattern is primarily caused by the seasonal migration of subtropical high-pressure belts and the Westerlies. In summer, the subtropical high expands poleward, bringing stable, dry conditions. In winter, the high retreats equatorward, allowing mid-latitude cyclones associated with the Westerlies to bring moisture and precipitation.

Solution: B

• Question 3 of 30 3. Question 1 points Consider the following statements: Statement-I: The East African Rift Valley system exhibits extensive volcanism, earthquake activity, and the formation of deep elongated lakes. Statement-II: The region represents a divergent plate boundary where the African Plate (Nubian) is splitting away from the Somali Plate. Which one of the following is correct in respect of the above statements? (a) Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I (b) Both Statement-I and Statement-II are correct, but Statement-II is not the correct explanation for Statement-I (c) Statement-I is correct, but Statement-II is incorrect (d) Statement-I is incorrect, but Statement-II is correct Correct Solution: A Statement-I is correct. The East African Rift is characterized by significant geological activity, including active volcanoes (like Mount Kilimanjaro and Mount Nyiragongo), frequent earthquakes resulting from faulting, and the formation of large, deep rift lakes (like Lake Tanganyika and Lake Malawi) within the down-dropped valley floor (graben). Statement-II is correct. The East African Rift System is a classic example of an active continental rift zone, marking a divergent plate boundary. The continental lithosphere is being stretched and thinned as the Somali Plate moves eastward relative to the larger Nubian (African) Plate. The geological features described in Statement-I (volcanism, seismicity, rift valley formation with lakes) are direct consequences of the tectonic process described in Statement-II (continental rifting at a divergent boundary). The stretching and thinning of the crust allow magma to reach the surface (volcanism), cause faulting (earthquakes), and lead to the subsidence that forms the rift valley and associated lakes. Incorrect Solution: A Statement-I is correct. The East African Rift is characterized by significant geological activity, including active volcanoes (like Mount Kilimanjaro and Mount Nyiragongo), frequent earthquakes resulting from faulting, and the formation of large, deep rift lakes (like Lake Tanganyika and Lake Malawi) within the down-dropped valley floor (graben). Statement-II is correct. The East African Rift System is a classic example of an active continental rift zone, marking a divergent plate boundary. The continental lithosphere is being stretched and thinned as the Somali Plate moves eastward relative to the larger Nubian (African) Plate. The geological features described in Statement-I (volcanism, seismicity, rift valley formation with lakes) are direct consequences of the tectonic process described in Statement-II (continental rifting at a divergent boundary). The stretching and thinning of the crust allow magma to reach the surface (volcanism), cause faulting (earthquakes), and lead to the subsidence that forms the rift valley and associated lakes.

#### 3. Question

Consider the following statements:

Statement-I: The East African Rift Valley system exhibits extensive volcanism, earthquake activity, and the formation of deep elongated lakes.

Statement-II: The region represents a divergent plate boundary where the African Plate (Nubian) is splitting away from the Somali Plate.

Which one of the following is correct in respect of the above statements?

• (a) Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I

• (b) Both Statement-I and Statement-II are correct, but Statement-II is not the correct explanation for Statement-I

• (c) Statement-I is correct, but Statement-II is incorrect

• (d) Statement-I is incorrect, but Statement-II is correct

Solution: A

• Statement-I is correct. The East African Rift is characterized by significant geological activity, including active volcanoes (like Mount Kilimanjaro and Mount Nyiragongo), frequent earthquakes resulting from faulting, and the formation of large, deep rift lakes (like Lake Tanganyika and Lake Malawi) within the down-dropped valley floor (graben).

• Statement-II is correct. The East African Rift System is a classic example of an active continental rift zone, marking a divergent plate boundary. The continental lithosphere is being stretched and thinned as the Somali Plate moves eastward relative to the larger Nubian (African) Plate.

• The geological features described in Statement-I (volcanism, seismicity, rift valley formation with lakes) are direct consequences of the tectonic process described in Statement-II (continental rifting at a divergent boundary). The stretching and thinning of the crust allow magma to reach the surface (volcanism), cause faulting (earthquakes), and lead to the subsidence that forms the rift valley and associated lakes.

Solution: A

• Question 4 of 30 4. Question 1 points Consider the following statements regarding the Sahel region of Africa: It is a semi-arid transition zone primarily located between the Sahara Desert to the north and the Sudanian Savanna to the south. The region experiences consistently high annual rainfall, supporting dense forest cover. Desertification, driven by climate change and unsustainable land use practices, is a major environmental challenge. The Great Green Wall initiative aims to combat desertification primarily through large-scale irrigation projects. How many of the statements given above are correct? (a) Only one statement (b) Only two statements (c) Only three statements (d) All four statements Correct Solution: B Statement 1 is correct. The Sahel is geographically defined as a transitional eco-climatic and biogeographic zone stretching across Africa between the Sahara Desert (north) and the more humid savannas (south). It is characterized by semi-arid conditions. Statement 2 is incorrect. The Sahel experiences low and highly variable annual rainfall, typically concentrated in a short rainy season. It supports grasslands, shrublands, and savannas, not dense forest cover. Statement 3 is correct. The Sahel is highly vulnerable to desertification due to its climate (prone to drought) and pressures from overgrazing, deforestation for fuelwood, and unsustainable agriculture, exacerbated by climate change impacts. Statement 4 is incorrect. The Great Green Wall initiative primarily focuses on restoring degraded lands through planting trees and vegetation, promoting sustainable land management practices, and improving water harvesting, not mainly through large-scale irrigation projects which are often unsustainable in such arid environments. Incorrect Solution: B Statement 1 is correct. The Sahel is geographically defined as a transitional eco-climatic and biogeographic zone stretching across Africa between the Sahara Desert (north) and the more humid savannas (south). It is characterized by semi-arid conditions. Statement 2 is incorrect. The Sahel experiences low and highly variable annual rainfall, typically concentrated in a short rainy season. It supports grasslands, shrublands, and savannas, not dense forest cover. Statement 3 is correct. The Sahel is highly vulnerable to desertification due to its climate (prone to drought) and pressures from overgrazing, deforestation for fuelwood, and unsustainable agriculture, exacerbated by climate change impacts. Statement 4 is incorrect. The Great Green Wall initiative primarily focuses on restoring degraded lands through planting trees and vegetation, promoting sustainable land management practices, and improving water harvesting, not mainly through large-scale irrigation projects which are often unsustainable in such arid environments.

#### 4. Question

Consider the following statements regarding the Sahel region of Africa:

• It is a semi-arid transition zone primarily located between the Sahara Desert to the north and the Sudanian Savanna to the south.

• The region experiences consistently high annual rainfall, supporting dense forest cover.

• Desertification, driven by climate change and unsustainable land use practices, is a major environmental challenge.

• The Great Green Wall initiative aims to combat desertification primarily through large-scale irrigation projects.

How many of the statements given above are correct?

• (a) Only one statement

• (b) Only two statements

• (c) Only three statements

• (d) All four statements

Solution: B

• Statement 1 is correct. The Sahel is geographically defined as a transitional eco-climatic and biogeographic zone stretching across Africa between the Sahara Desert (north) and the more humid savannas (south). It is characterized by semi-arid conditions.

• Statement 2 is incorrect. The Sahel experiences low and highly variable annual rainfall, typically concentrated in a short rainy season. It supports grasslands, shrublands, and savannas, not dense forest cover.

• Statement 3 is correct. The Sahel is highly vulnerable to desertification due to its climate (prone to drought) and pressures from overgrazing, deforestation for fuelwood, and unsustainable agriculture, exacerbated by climate change impacts.

• Statement 4 is incorrect. The Great Green Wall initiative primarily focuses on restoring degraded lands through planting trees and vegetation, promoting sustainable land management practices, and improving water harvesting, not mainly through large-scale irrigation projects which are often unsustainable in such arid environments.

Solution: B

• Question 5 of 30 5. Question 1 points The primary driving mechanism behind the global Thermohaline Circulation (Ocean Conveyor Belt) is differences in seawater: (a) Salinity and Wind Stress (b) Temperature and Wind Stress (c) Temperature and Salinity, leading to density variations (d) Surface currents and Coriolis effect Correct Solution: C Thermohaline Circulation is driven by differences in density of seawater. Seawater density is primarily controlled by temperature (thermo-) and salinity (haline). Cold, salty water is denser and tends to sink in high-latitude regions (like the North Atlantic and near Antarctica). This sinking pulls surface water towards these regions and initiates the deep ocean currents that form the global conveyor belt. Wind stress (a) and (b) is the primary driver of surface ocean currents, not the deep thermohaline circulation. Surface currents and the Coriolis effect (d) are related to surface circulation patterns, influenced by wind and Earth’s rotation, but they don’t initiate the large-scale deep ocean overturning driven by density differences Incorrect Solution: C Thermohaline Circulation is driven by differences in density of seawater. Seawater density is primarily controlled by temperature (thermo-) and salinity (haline). Cold, salty water is denser and tends to sink in high-latitude regions (like the North Atlantic and near Antarctica). This sinking pulls surface water towards these regions and initiates the deep ocean currents that form the global conveyor belt. Wind stress (a) and (b) is the primary driver of surface ocean currents, not the deep thermohaline circulation. Surface currents and the Coriolis effect (d) are related to surface circulation patterns, influenced by wind and Earth’s rotation, but they don’t initiate the large-scale deep ocean overturning driven by density differences

#### 5. Question

The primary driving mechanism behind the global Thermohaline Circulation (Ocean Conveyor Belt) is differences in seawater:

• (a) Salinity and Wind Stress

• (b) Temperature and Wind Stress

• (c) Temperature and Salinity, leading to density variations

• (d) Surface currents and Coriolis effect

Solution: C

• Thermohaline Circulation is driven by differences in density of seawater. Seawater density is primarily controlled by temperature (thermo-) and salinity (haline).

• Cold, salty water is denser and tends to sink in high-latitude regions (like the North Atlantic and near Antarctica). This sinking pulls surface water towards these regions and initiates the deep ocean currents that form the global conveyor belt.

• Wind stress (a) and (b) is the primary driver of surface ocean currents, not the deep thermohaline circulation.

Surface currents and the Coriolis effect (d) are related to surface circulation patterns, influenced by wind and Earth’s rotation, but they don’t initiate the large-scale deep ocean overturning driven by density differences

Solution: C

• Thermohaline Circulation is driven by differences in density of seawater. Seawater density is primarily controlled by temperature (thermo-) and salinity (haline).

• Wind stress (a) and (b) is the primary driver of surface ocean currents, not the deep thermohaline circulation.

• Question 6 of 30 6. Question 1 points Which country currently dominates the global production and processing of Rare Earth Elements (REEs), making it central to global supply chains for high-tech industries? (a) Australia (b) United States (c) China (d) Brazil Correct Solution: C While REE deposits exist in various countries (including Australia, USA, Brazil, India), China has established overwhelming dominance in the mining, separation, processing, and refining stages of the REE supply chain for several decades. This concentration poses geopolitical and supply chain risks, prompting efforts by other countries (like USA, Australia) to diversify sources and processing capabilities. However, as of the early-mid 2020s, China remains the dominant player by a large margin. Incorrect Solution: C While REE deposits exist in various countries (including Australia, USA, Brazil, India), China has established overwhelming dominance in the mining, separation, processing, and refining stages of the REE supply chain for several decades. This concentration poses geopolitical and supply chain risks, prompting efforts by other countries (like USA, Australia) to diversify sources and processing capabilities. However, as of the early-mid 2020s, China remains the dominant player by a large margin.

#### 6. Question

Which country currently dominates the global production and processing of Rare Earth Elements (REEs), making it central to global supply chains for high-tech industries?

• (a) Australia

• (b) United States

• (d) Brazil

Solution: C

• While REE deposits exist in various countries (including Australia, USA, Brazil, India), China has established overwhelming dominance in the mining, separation, processing, and refining stages of the REE supply chain for several decades.

• This concentration poses geopolitical and supply chain risks, prompting efforts by other countries (like USA, Australia) to diversify sources and processing capabilities. However, as of the early-mid 2020s, China remains the dominant player by a large margin.

Solution: C

• Question 7 of 30 7. Question 1 points How many of the following factors directly influence the amount of insolation (incoming solar radiation) received at a specific location on the Earth’s surface? Latitude Time of Day Cloud Cover Altitude Longitude Select the correct answer using the codes given below: (a) Only two factors (b) Only three factors (c) Only four factors (d) All five factors Correct Solution: C Latitude (Influences): Determines the angle of incidence of solar rays and the length of daylight, both critical factors for insolation amount. Higher latitudes generally receive less intense, more oblique sunlight. Time of Day (Influences): Affects the sun’s angle in the sky (solar altitude). Insolation is highest when the sun is highest (around solar noon) and lowest at sunrise/sunset. Cloud Cover (Influences): Clouds reflect and absorb significant amounts of incoming solar radiation, reducing the amount reaching the surface. Cloud type and thickness are important variables. Altitude (Influences): Higher altitudes generally receive slightly more intense insolation because there is less atmosphere above to scatter or absorb the radiation. The air is thinner and often cleaner. Longitude (Does NOT directly influence): Longitude determines the timing of sunrise, solar noon, and sunset (local time), but it does not directly affect the intensity or amount of solar radiation received at a given latitude and time of day (assuming other factors like cloud cover and altitude are equal). Two locations at the same latitude but different longitudes will experience solar noon at different times but receive similar peak insolation under clear skies. Incorrect Solution: C Latitude (Influences): Determines the angle of incidence of solar rays and the length of daylight, both critical factors for insolation amount. Higher latitudes generally receive less intense, more oblique sunlight. Time of Day (Influences): Affects the sun’s angle in the sky (solar altitude). Insolation is highest when the sun is highest (around solar noon) and lowest at sunrise/sunset. Cloud Cover (Influences): Clouds reflect and absorb significant amounts of incoming solar radiation, reducing the amount reaching the surface. Cloud type and thickness are important variables. Altitude (Influences): Higher altitudes generally receive slightly more intense insolation because there is less atmosphere above to scatter or absorb the radiation. The air is thinner and often cleaner. Longitude (Does NOT directly influence): Longitude determines the timing of sunrise, solar noon, and sunset (local time), but it does not directly affect the intensity or amount of solar radiation received at a given latitude and time of day (assuming other factors like cloud cover and altitude are equal). Two locations at the same latitude but different longitudes will experience solar noon at different times but receive similar peak insolation under clear skies.

#### 7. Question

How many of the following factors directly influence the amount of insolation (incoming solar radiation) received at a specific location on the Earth’s surface?

• Time of Day

• Cloud Cover

Select the correct answer using the codes given below:

• (a) Only two factors

• (b) Only three factors

• (c) Only four factors

• (d) All five factors

Solution: C

• Latitude (Influences): Determines the angle of incidence of solar rays and the length of daylight, both critical factors for insolation amount. Higher latitudes generally receive less intense, more oblique sunlight.

• Time of Day (Influences): Affects the sun’s angle in the sky (solar altitude). Insolation is highest when the sun is highest (around solar noon) and lowest at sunrise/sunset.

• Cloud Cover (Influences): Clouds reflect and absorb significant amounts of incoming solar radiation, reducing the amount reaching the surface. Cloud type and thickness are important variables.

• Altitude (Influences): Higher altitudes generally receive slightly more intense insolation because there is less atmosphere above to scatter or absorb the radiation. The air is thinner and often cleaner.

• Longitude (Does NOT directly influence): Longitude determines the timing of sunrise, solar noon, and sunset (local time), but it does not directly affect the intensity or amount of solar radiation received at a given latitude and time of day (assuming other factors like cloud cover and altitude are equal). Two locations at the same latitude but different longitudes will experience solar noon at different times but receive similar peak insolation under clear skies.

Solution: C

• Time of Day (Influences): Affects the sun’s angle in the sky (solar altitude). Insolation is highest when the sun is highest (around solar noon) and lowest at sunrise/sunset.

• Question 8 of 30 8. Question 1 points Oxbow lakes are most characteristically formed as a result of: (a) Glacial erosion carving out depressions in a valley floor. (b) Volcanic caldera collapse filling with water. (c) Coastal processes isolating a lagoon from the sea. (d) River meandering and subsequent cutoff of a meander loop. Correct Solution: D Oxbow lakes are features of fluvial geomorphology, specifically associated with meandering rivers on flat floodplains. As a river meanders, erosion occurs on the outer bank (cut bank) and deposition on the inner bank (point bar), exaggerating the loop. Eventually, during a flood or through gradual erosion, the river cuts across the narrow neck of the meander loop, shortening its course. The abandoned meander loop is sealed off by deposition, forming a crescent-shaped lake known as an oxbow lake. Incorrect Solution: D Oxbow lakes are features of fluvial geomorphology, specifically associated with meandering rivers on flat floodplains. As a river meanders, erosion occurs on the outer bank (cut bank) and deposition on the inner bank (point bar), exaggerating the loop. Eventually, during a flood or through gradual erosion, the river cuts across the narrow neck of the meander loop, shortening its course. The abandoned meander loop is sealed off by deposition, forming a crescent-shaped lake known as an oxbow lake.

#### 8. Question

Oxbow lakes are most characteristically formed as a result of:

• (a) Glacial erosion carving out depressions in a valley floor.

• (b) Volcanic caldera collapse filling with water.

• (c) Coastal processes isolating a lagoon from the sea.

• (d) River meandering and subsequent cutoff of a meander loop.

Solution: D

• Oxbow lakes are features of fluvial geomorphology, specifically associated with meandering rivers on flat floodplains.

• As a river meanders, erosion occurs on the outer bank (cut bank) and deposition on the inner bank (point bar), exaggerating the loop. Eventually, during a flood or through gradual erosion, the river cuts across the narrow neck of the meander loop, shortening its course.

• The abandoned meander loop is sealed off by deposition, forming a crescent-shaped lake known as an oxbow lake.

Solution: D

• Oxbow lakes are features of fluvial geomorphology, specifically associated with meandering rivers on flat floodplains.

• The abandoned meander loop is sealed off by deposition, forming a crescent-shaped lake known as an oxbow lake.

• Question 9 of 30 9. Question 1 points Consider the following pairs: Convergent Boundary (Oceanic-Continental): Formation of volcanic island arcs. Divergent Boundary (Continental): Formation of mid-ocean ridges. Transform Boundary: Predominant feature is horizontal displacement along faults. Convergent Boundary (Continental-Continental) : Creation of new oceanic crust. How many of the pairs given above are correctly matched? (a) Only one pair (b) Only two pair (c) Only three pairs (d) All four pairs Correct Solution: A Pair 1 is incorrect. Oceanic-Continental convergence leads to the subduction of the oceanic plate beneath the continental plate, resulting in the formation of a continental volcanic arc (e.g., the Andes), not typically island arcs. Volcanic island arcs form at Oceanic-Oceanic convergent boundaries. Pair 2 is incorrect. Continental divergent boundaries lead to rift valleys (e.g., East African Rift). Mid-ocean ridges form at oceanic divergent boundaries. Pair 3 is correct. Transform boundaries are characterized by plates sliding horizontally past each other along large strike-slip faults (e.g., San Andreas Fault). Horizontal displacement is the defining feature. Pair 4 is incorrect. Continental-Continental convergence results in intense folding, faulting, and mountain building (e.g., the Himalayas) as continental crust cannot easily subduct. New oceanic crust is created at divergent boundaries (mid-ocean ridges). Incorrect Solution: A Pair 1 is incorrect. Oceanic-Continental convergence leads to the subduction of the oceanic plate beneath the continental plate, resulting in the formation of a continental volcanic arc (e.g., the Andes), not typically island arcs. Volcanic island arcs form at Oceanic-Oceanic convergent boundaries. Pair 2 is incorrect. Continental divergent boundaries lead to rift valleys (e.g., East African Rift). Mid-ocean ridges form at oceanic divergent boundaries. Pair 3 is correct. Transform boundaries are characterized by plates sliding horizontally past each other along large strike-slip faults (e.g., San Andreas Fault). Horizontal displacement is the defining feature. Pair 4 is incorrect. Continental-Continental convergence results in intense folding, faulting, and mountain building (e.g., the Himalayas) as continental crust cannot easily subduct. New oceanic crust is created at divergent boundaries (mid-ocean ridges).

#### 9. Question

Consider the following pairs:

• Convergent Boundary (Oceanic-Continental): Formation of volcanic island arcs.

• Divergent Boundary (Continental): Formation of mid-ocean ridges.

• Transform Boundary: Predominant feature is horizontal displacement along faults.

• Convergent Boundary (Continental-Continental) : Creation of new oceanic crust.

How many of the pairs given above are correctly matched?

• (a) Only one pair

• (b) Only two pair

• (c) Only three pairs

• (d) All four pairs

Solution: A

• Pair 1 is incorrect. Oceanic-Continental convergence leads to the subduction of the oceanic plate beneath the continental plate, resulting in the formation of a continental volcanic arc (e.g., the Andes), not typically island arcs. Volcanic island arcs form at Oceanic-Oceanic convergent boundaries.

• Pair 2 is incorrect. Continental divergent boundaries lead to rift valleys (e.g., East African Rift). Mid-ocean ridges form at oceanic divergent boundaries.

• Pair 3 is correct. Transform boundaries are characterized by plates sliding horizontally past each other along large strike-slip faults (e.g., San Andreas Fault). Horizontal displacement is the defining feature.

• Pair 4 is incorrect. Continental-Continental convergence results in intense folding, faulting, and mountain building (e.g., the Himalayas) as continental crust cannot easily subduct. New oceanic crust is created at divergent boundaries (mid-ocean ridges).

Solution: A

• Pair 2 is incorrect. Continental divergent boundaries lead to rift valleys (e.g., East African Rift). Mid-ocean ridges form at oceanic divergent boundaries.

• Question 10 of 30 10. Question 1 points Which one of the following best distinguishes Fold Mountains from Block Mountains in terms of their primary formation process? (a) Fold mountains result from volcanic eruptions, while block mountains result from erosion. (b) Fold mountains are formed by crustal compression and folding, while block mountains are formed by crustal extension and faulting. (c) Fold mountains are associated with divergent plate boundaries, while block mountains are associated with convergent plate boundaries. (d) Fold mountains are typically older and more eroded than block mountains. Correct Solution: B Fold Mountains (e.g., Himalayas, Alps, Appalachians) are formed primarily by large-scale compressional forces at convergent plate boundaries, causing rock strata to buckle and fold. Block Mountains (also known as fault-block mountains or horsts, e.g., Vosges, Sierra Nevada) are created when tensional forces (crustal extension) cause large blocks of crust to be uplifted or down-dropped along faults. The uplifted blocks form the mountains (horsts), and the down-dropped blocks form valleys (grabens). Incorrect Solution: B Fold Mountains (e.g., Himalayas, Alps, Appalachians) are formed primarily by large-scale compressional forces at convergent plate boundaries, causing rock strata to buckle and fold. Block Mountains (also known as fault-block mountains or horsts, e.g., Vosges, Sierra Nevada) are created when tensional forces (crustal extension) cause large blocks of crust to be uplifted or down-dropped along faults. The uplifted blocks form the mountains (horsts), and the down-dropped blocks form valleys (grabens).

#### 10. Question

Which one of the following best distinguishes Fold Mountains from Block Mountains in terms of their primary formation process?

• (a) Fold mountains result from volcanic eruptions, while block mountains result from erosion.

• (b) Fold mountains are formed by crustal compression and folding, while block mountains are formed by crustal extension and faulting.

• (c) Fold mountains are associated with divergent plate boundaries, while block mountains are associated with convergent plate boundaries.

• (d) Fold mountains are typically older and more eroded than block mountains.

Solution: B

• Fold Mountains (e.g., Himalayas, Alps, Appalachians) are formed primarily by large-scale compressional forces at convergent plate boundaries, causing rock strata to buckle and fold.

• Block Mountains (also known as fault-block mountains or horsts, e.g., Vosges, Sierra Nevada) are created when tensional forces (crustal extension) cause large blocks of crust to be uplifted or down-dropped along faults. The uplifted blocks form the mountains (horsts), and the down-dropped blocks form valleys (grabens).

Solution: B

• Fold Mountains (e.g., Himalayas, Alps, Appalachians) are formed primarily by large-scale compressional forces at convergent plate boundaries, causing rock strata to buckle and fold.

• Question 11 of 30 11. Question 1 points Consider the following statements: Both gorges and Canyons develop due to deepening and widening of gullies. Unlike canyons that are equal in width at both top and bottom, gorges are narrower at the top compared to bottom. Which of the statements given above is/are correct? (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2 Correct Solution: A Valleys are formed due to erosion of rivers. They start as small and narrow rolls; the rills gradually develop into long and wide gullies Gorges and canyons form mainly due to vertical erosion by rivers cutting deep into the earth, not primarily by widening of gullies. Gullies are smaller erosional features. Canyons and gorges are larger, river-formed landforms due to downward erosion over geological timescales. Hence statement 1 is correct A canyon is a variant of gorge. A gorge is a deep Valley with very steep to straight sides and a canyon is characterized by step like side slopes and maybe as deep as a gorge A gorge is almost equal in width at its top as well as its bottom ; in contrast, a canon is wider at its top than its bottom. Hence statement 2 is incorrect Incorrect Solution: A Valleys are formed due to erosion of rivers. They start as small and narrow rolls; the rills gradually develop into long and wide gullies Gorges and canyons form mainly due to vertical erosion by rivers cutting deep into the earth, not primarily by widening of gullies. Gullies are smaller erosional features. Canyons and gorges are larger, river-formed landforms due to downward erosion over geological timescales. Hence statement 1 is correct A canyon is a variant of gorge. A gorge is a deep Valley with very steep to straight sides and a canyon is characterized by step like side slopes and maybe as deep as a gorge A gorge is almost equal in width at its top as well as its bottom ; in contrast, a canon is wider at its top than its bottom. Hence statement 2 is incorrect

#### 11. Question

Consider the following statements:

• Both gorges and Canyons develop due to deepening and widening of gullies.

• Unlike canyons that are equal in width at both top and bottom, gorges are narrower at the top compared to bottom.

Which of the statements given above is/are correct?

• (a) 1 only

• (b) 2 only

• (c) Both 1 and 2

• (d) Neither 1 nor 2

Solution: A

• Valleys are formed due to erosion of rivers.

• They start as small and narrow rolls; the rills gradually develop into long and wide gullies

• Gorges and canyons form mainly due to vertical erosion by rivers cutting deep into the earth, not primarily by widening of gullies.

• Gullies are smaller erosional features. Canyons and gorges are larger, river-formed landforms due to downward erosion over geological timescales.

Hence statement 1 is correct

• A canyon is a variant of gorge.

• A gorge is a deep Valley with very steep to straight sides and a canyon is characterized by step like side slopes and maybe as deep as a gorge

• A gorge is almost equal in width at its top as well as its bottom ; in contrast, a canon is wider at its top than its bottom.

Hence statement 2 is incorrect

Solution: A

• Valleys are formed due to erosion of rivers.

• They start as small and narrow rolls; the rills gradually develop into long and wide gullies

• Gorges and canyons form mainly due to vertical erosion by rivers cutting deep into the earth, not primarily by widening of gullies.

• Gullies are smaller erosional features. Canyons and gorges are larger, river-formed landforms due to downward erosion over geological timescales.

Hence statement 1 is correct

• A canyon is a variant of gorge.

• A gorge is a deep Valley with very steep to straight sides and a canyon is characterized by step like side slopes and maybe as deep as a gorge

• A gorge is almost equal in width at its top as well as its bottom ; in contrast, a canon is wider at its top than its bottom.

Hence statement 2 is incorrect

• Question 12 of 30 12. Question 1 points Which of the following best describes the term Artesian condition? (a) Changes in monsoon pattern due to changes in position of the Inter Tropical Convergence Zone (b) A layer of grasses and shrubs that prohibits top soil erosion in erosion prone regions (c) A situation when groundwater is trapped under pressure between layers of impermeable rocks (d) Formation of Rogue waves due to underwater earthquake Correct Solution: C An Artesian condition occurs when groundwater is confined under pressure between layers of impermeable Rock called an Artesian aquifer. It provides access to groundwater in arid regions It also reveals sub surface hydrogeological conditions It enables irrigation without pumping in confined aquifers. The major factors leading to it are: Water trapped between impermeable rock layers Natural geological pressure caused by the weight of overlying impermeable layers Release of pressure when the top layer is punctured. Hence option C is correct Incorrect Solution: C An Artesian condition occurs when groundwater is confined under pressure between layers of impermeable Rock called an Artesian aquifer. It provides access to groundwater in arid regions It also reveals sub surface hydrogeological conditions It enables irrigation without pumping in confined aquifers. The major factors leading to it are: Water trapped between impermeable rock layers Natural geological pressure caused by the weight of overlying impermeable layers Release of pressure when the top layer is punctured. Hence option C is correct

#### 12. Question

Which of the following best describes the term Artesian condition?

• (a) Changes in monsoon pattern due to changes in position of the Inter Tropical Convergence Zone

• (b) A layer of grasses and shrubs that prohibits top soil erosion in erosion prone regions

• (c) A situation when groundwater is trapped under pressure between layers of impermeable rocks

• (d) Formation of Rogue waves due to underwater earthquake

Solution: C

• An Artesian condition occurs when groundwater is confined under pressure between layers of impermeable Rock called an Artesian aquifer.

• It provides access to groundwater in arid regions

• It also reveals sub surface hydrogeological conditions

• It enables irrigation without pumping in confined aquifers.

The major factors leading to it are:

• Water trapped between impermeable rock layers

• Natural geological pressure caused by the weight of overlying impermeable layers

• Release of pressure when the top layer is punctured.

Hence option C is correct

Solution: C

• An Artesian condition occurs when groundwater is confined under pressure between layers of impermeable Rock called an Artesian aquifer.

• It provides access to groundwater in arid regions

• It also reveals sub surface hydrogeological conditions

• It enables irrigation without pumping in confined aquifers.

The major factors leading to it are:

• Water trapped between impermeable rock layers

• Natural geological pressure caused by the weight of overlying impermeable layers

• Release of pressure when the top layer is punctured.

Hence option C is correct

• Question 13 of 30 13. Question 1 points Consider the following pairs: Islands Disputing Countries 1.Falkland Islands Russia and Finland 2. Senkaku Island Japan and China 3. Cook Islands Argentina and South Africa How many of the pairs given above are correct? (a) Only one (b) Only two (c) All three (d) None Correct Solution: A The Falkland Island is a region of dispute between Argentina and the United Kingdom. The dispute has its roots in a brief war in 1982 which ultimately resulted in the islands remaining under British control with support of the inhabitants. Hence pair 1 is incorrect Senkaku Islands is a disputed territory between China and Japan. These are a group of uninhabited islands in the East China Sea located approximately 90 nautical miles north from the Yaeyama islands in Japan’s Okinawa Prefecture and 120 nautical miles north east of the island of Taiwan. These are also known as Diaoyu islands in mainland China. Hence pair 2 is correct Cook Islands are in Polynesia in the South Pacific Ocean. It is a group of 15 islands spread over a large area; it is a mix of volcanic islands and coral atolls with lagoons and coral reefs. Recently New Zealand has raised significant concerns over the Cook Islands’ plan to sign a strategic partnership deal with China citing a lack of prior consultation. Hence pair 3 is incorrect Incorrect Solution: A The Falkland Island is a region of dispute between Argentina and the United Kingdom. The dispute has its roots in a brief war in 1982 which ultimately resulted in the islands remaining under British control with support of the inhabitants. Hence pair 1 is incorrect Senkaku Islands is a disputed territory between China and Japan. These are a group of uninhabited islands in the East China Sea located approximately 90 nautical miles north from the Yaeyama islands in Japan’s Okinawa Prefecture and 120 nautical miles north east of the island of Taiwan. These are also known as Diaoyu islands in mainland China. Hence pair 2 is correct Cook Islands are in Polynesia in the South Pacific Ocean. It is a group of 15 islands spread over a large area; it is a mix of volcanic islands and coral atolls with lagoons and coral reefs. Recently New Zealand has raised significant concerns over the Cook Islands’ plan to sign a strategic partnership deal with China citing a lack of prior consultation. Hence pair 3 is incorrect

#### 13. Question

Consider the following pairs:

Islands | Disputing Countries

1.Falkland Islands | Russia and Finland

1.Senkaku Island | Japan and China
2.Cook Islands | Argentina and South Africa

How many of the pairs given above are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: A

• The Falkland Island is a region of dispute between Argentina and the United Kingdom.

• The dispute has its roots in a brief war in 1982 which ultimately resulted in the islands remaining under British control with support of the inhabitants.

Hence pair 1 is incorrect

• Senkaku Islands is a disputed territory between China and Japan.

• These are a group of uninhabited islands in the East China Sea located approximately 90 nautical miles north from the Yaeyama islands in Japan’s Okinawa Prefecture and 120 nautical miles north east of the island of Taiwan.

• These are also known as Diaoyu islands in mainland China.

Hence pair 2 is correct

• Cook Islands are in Polynesia in the South Pacific Ocean.

• It is a group of 15 islands spread over a large area; it is a mix of volcanic islands and coral atolls with lagoons and coral reefs.

• Recently New Zealand has raised significant concerns over the Cook Islands’ plan to sign a strategic partnership deal with China citing a lack of prior consultation.

Hence pair 3 is incorrect

Solution: A

• The Falkland Island is a region of dispute between Argentina and the United Kingdom.

• The dispute has its roots in a brief war in 1982 which ultimately resulted in the islands remaining under British control with support of the inhabitants.

Hence pair 1 is incorrect

• Senkaku Islands is a disputed territory between China and Japan.

• These are also known as Diaoyu islands in mainland China.

Hence pair 2 is correct

• Cook Islands are in Polynesia in the South Pacific Ocean.

• It is a group of 15 islands spread over a large area; it is a mix of volcanic islands and coral atolls with lagoons and coral reefs.

• Recently New Zealand has raised significant concerns over the Cook Islands’ plan to sign a strategic partnership deal with China citing a lack of prior consultation.

Hence pair 3 is incorrect

• Question 14 of 30 14. Question 1 points Consider the following: Offshore storms Ocean warming Coastal erosion How many of the above factors influence Tidal Flooding? (a) 1 and 2 only (b) 2 only (c) 1, 2 and 3 (d) 1 only Correct Solution: C Tidal Flooding occurs when combination of high tide offshore storms, winds and full moon cycles led to a temporary rise in local sea level; coastal drainage system often fail to cope with the situation, resulting in localised flooding. Repeated flooding damages roads, buildings and drainage systems; it also disrupts ecosystem and accelerate Coastal erosion The factors influencing tidal Flooding are: Melting glaciers, thermal expansion and land subsidence increase baseline sea level Hurricane and offshore storms amplify water level during high tides Warmer oceans contribute to stronger storms and more intense tidal events Coastal erosion and low-lying topography make certain regions more vulnerable. Hence option C is correct Incorrect Solution: C Tidal Flooding occurs when combination of high tide offshore storms, winds and full moon cycles led to a temporary rise in local sea level; coastal drainage system often fail to cope with the situation, resulting in localised flooding. Repeated flooding damages roads, buildings and drainage systems; it also disrupts ecosystem and accelerate Coastal erosion The factors influencing tidal Flooding are: Melting glaciers, thermal expansion and land subsidence increase baseline sea level Hurricane and offshore storms amplify water level during high tides Warmer oceans contribute to stronger storms and more intense tidal events Coastal erosion and low-lying topography make certain regions more vulnerable. Hence option C is correct

#### 14. Question

Consider the following:

• Offshore storms

• Ocean warming

• Coastal erosion

How many of the above factors influence Tidal Flooding?

• (a) 1 and 2 only

• (b) 2 only

• (c) 1, 2 and 3

• (d) 1 only

Solution: C

• Tidal Flooding occurs when combination of high tide offshore storms, winds and full moon cycles led to a temporary rise in local sea level; coastal drainage system often fail to cope with the situation, resulting in localised flooding.

• Repeated flooding damages roads, buildings and drainage systems; it also disrupts ecosystem and accelerate Coastal erosion

The factors influencing tidal Flooding are:

• Melting glaciers, thermal expansion and land subsidence increase baseline sea level

• Hurricane and offshore storms amplify water level during high tides

• Warmer oceans contribute to stronger storms and more intense tidal events

• Coastal erosion and low-lying topography make certain regions more vulnerable.

Hence option C is correct

Solution: C

• Repeated flooding damages roads, buildings and drainage systems; it also disrupts ecosystem and accelerate Coastal erosion

The factors influencing tidal Flooding are:

• Melting glaciers, thermal expansion and land subsidence increase baseline sea level

• Hurricane and offshore storms amplify water level during high tides

• Warmer oceans contribute to stronger storms and more intense tidal events

• Coastal erosion and low-lying topography make certain regions more vulnerable.

Hence option C is correct

• Question 15 of 30 15. Question 1 points Consider the following pairs: Rivers Draining into Shinano : East China Sea Kapuas : South China Sea Volga : North Sea How many of the pairs given above are correct? (a) Only one (b) Only two (c) All three (d) None Correct Solution: A Shinano is the largest and the longest river in Japan It flows from the Japanese Alps in Nagano Perfecture through Niigata Perfecture and finally drain into the Sea of Japan. Hence pair 1 is incorrect Kapuas river (1143km) is in Borneo, capital of Indonesia. It is the largest river system of Indonesia and has also the world’s longest Island river. It originates in the Muller mountain range and flows West into the South China Sea. Hence pair 2 is correct. Volga is the national river of Russia flowing through Western part of the country. It is the longest river in Europe It rises in the Valadi hills in Russia and flows into the Caspian Sea. Hence pair 3 is incorrect Incorrect Solution: A Shinano is the largest and the longest river in Japan It flows from the Japanese Alps in Nagano Perfecture through Niigata Perfecture and finally drain into the Sea of Japan. Hence pair 1 is incorrect Kapuas river (1143km) is in Borneo, capital of Indonesia. It is the largest river system of Indonesia and has also the world’s longest Island river. It originates in the Muller mountain range and flows West into the South China Sea. Hence pair 2 is correct. Volga is the national river of Russia flowing through Western part of the country. It is the longest river in Europe It rises in the Valadi hills in Russia and flows into the Caspian Sea. Hence pair 3 is incorrect

#### 15. Question

Consider the following pairs:

Rivers Draining into

• Shinano : East China Sea

• Kapuas : South China Sea

• Volga : North Sea

How many of the pairs given above are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: A

• Shinano is the largest and the longest river in Japan

• It flows from the Japanese Alps in Nagano Perfecture through Niigata Perfecture and finally drain into the Sea of Japan.

Hence pair 1 is incorrect

• Kapuas river (1143km) is in Borneo, capital of Indonesia.

• It is the largest river system of Indonesia and has also the world’s longest Island river.

• It originates in the Muller mountain range and flows West into the South China Sea.

Hence pair 2 is correct.

• Volga is the national river of Russia flowing through Western part of the country.

• It is the longest river in Europe

• It rises in the Valadi hills in Russia and flows into the Caspian Sea.

Hence pair 3 is incorrect

Solution: A

• Shinano is the largest and the longest river in Japan

• It flows from the Japanese Alps in Nagano Perfecture through Niigata Perfecture and finally drain into the Sea of Japan.

Hence pair 1 is incorrect

• Kapuas river (1143km) is in Borneo, capital of Indonesia.

• It is the largest river system of Indonesia and has also the world’s longest Island river.

• It originates in the Muller mountain range and flows West into the South China Sea.

Hence pair 2 is correct.

• Volga is the national river of Russia flowing through Western part of the country.

• It is the longest river in Europe

• It rises in the Valadi hills in Russia and flows into the Caspian Sea.

Hence pair 3 is incorrect

• Question 16 of 30 16. Question 1 points Consider the following countries of Asia: Armenia Tajikistan Iraq Laos Kazakhstan How many of the above are Landlocked countries? (a) Only two (b) Only three (c) Only four (d) All five Correct Solution: C There are Twelve landlocked countries in Asia, they are: Afghanistan Armenia Azerbaijan Bhutan Kazakhstan Kyrgyzstan Laos Mongolia Nepal Tajikistan Turkmenistan Uzbekistan Among these, Afghanistan is the most populous landlocked country in Asia. Armenia is the smallest landlocked country in Asia while Kazakhstan is the largest landlocked country in the world; Kazakhstan borders Caspian Sea but since Caspian Sea is an inland sea and not an ocean, hence it does not provide Direct Access to global sea borne trade routes. Laos is the only landlocked country in Southeast Asia. Uzbekistan is a double landlocked country, surrounded by other landlocked countries. Hence options 1, 2, 4 and 5 are correct Iraq is not a landlocked country; it has a short coastline on the Persian Gulf. Hence option 3 is incorrect Incorrect Solution: C There are Twelve landlocked countries in Asia, they are: Afghanistan Armenia Azerbaijan Bhutan Kazakhstan Kyrgyzstan Laos Mongolia Nepal Tajikistan Turkmenistan Uzbekistan Among these, Afghanistan is the most populous landlocked country in Asia. Armenia is the smallest landlocked country in Asia while Kazakhstan is the largest landlocked country in the world; Kazakhstan borders Caspian Sea but since Caspian Sea is an inland sea and not an ocean, hence it does not provide Direct Access to global sea borne trade routes. Laos is the only landlocked country in Southeast Asia. Uzbekistan is a double landlocked country, surrounded by other landlocked countries. Hence options 1, 2, 4 and 5 are correct Iraq is not a landlocked country; it has a short coastline on the Persian Gulf. Hence option 3 is incorrect

#### 16. Question

Consider the following countries of Asia:

• Tajikistan

• Kazakhstan

How many of the above are Landlocked countries?

• (a) Only two

• (b) Only three

• (c) Only four

• (d) All five

Solution: C

There are Twelve landlocked countries in Asia, they are:

• Afghanistan

• Azerbaijan

• Kazakhstan

• Kyrgyzstan

• Tajikistan

• Turkmenistan

• Uzbekistan

Among these, Afghanistan is the most populous landlocked country in Asia.

• Armenia is the smallest landlocked country in Asia while Kazakhstan is the largest landlocked country in the world;

• Kazakhstan borders Caspian Sea but since Caspian Sea is an inland sea and not an ocean, hence it does not provide Direct Access to global sea borne trade routes.

• Laos is the only landlocked country in Southeast Asia.

• Uzbekistan is a double landlocked country, surrounded by other landlocked countries.

Hence options 1, 2, 4 and 5 are correct

• Iraq is not a landlocked country; it has a short coastline on the Persian Gulf.

Hence option 3 is incorrect

Solution: C

There are Twelve landlocked countries in Asia, they are:

• Afghanistan

• Azerbaijan

• Kazakhstan

• Kyrgyzstan

• Tajikistan

• Turkmenistan

• Uzbekistan

Among these, Afghanistan is the most populous landlocked country in Asia.

• Armenia is the smallest landlocked country in Asia while Kazakhstan is the largest landlocked country in the world;

• Kazakhstan borders Caspian Sea but since Caspian Sea is an inland sea and not an ocean, hence it does not provide Direct Access to global sea borne trade routes.

• Laos is the only landlocked country in Southeast Asia.

• Uzbekistan is a double landlocked country, surrounded by other landlocked countries.

Hence options 1, 2, 4 and 5 are correct

• Iraq is not a landlocked country; it has a short coastline on the Persian Gulf.

Hence option 3 is incorrect

• Question 17 of 30 17. Question 1 points The Gulf of Tonkin, recently in news is located in the: (a) Philippine Sea (b) East Siberian Sea (c) Kara Sea (d) South China Sea Correct Solution: D The Gulf of Tonkin, a shallow present shift body of water, is situated in the South China Sea. It borders Tonkin in the Northern Vietnam and South China; it is bordered by Vietnam’s Northern coastline to the west and Northwest China’s Guangxi Zhuang Autonomous region to the north and Leizhou Peninsula and Hainan Island to the East. The Gulf of Tonkin incident in 1964 escalated US involvement in the Vietnam War. Hence option D is correct Incorrect Solution: D The Gulf of Tonkin, a shallow present shift body of water, is situated in the South China Sea. It borders Tonkin in the Northern Vietnam and South China; it is bordered by Vietnam’s Northern coastline to the west and Northwest China’s Guangxi Zhuang Autonomous region to the north and Leizhou Peninsula and Hainan Island to the East. The Gulf of Tonkin incident in 1964 escalated US involvement in the Vietnam War. Hence option D is correct

#### 17. Question

The Gulf of Tonkin, recently in news is located in the:

• (a) Philippine Sea

• (b) East Siberian Sea

• (c) Kara Sea

• (d) South China Sea

Solution: D

• The Gulf of Tonkin, a shallow present shift body of water, is situated in the South China Sea.

• It borders Tonkin in the Northern Vietnam and South China; it is bordered by Vietnam’s Northern coastline to the west and Northwest China’s Guangxi Zhuang Autonomous region to the north and Leizhou Peninsula and Hainan Island to the East.

• The Gulf of Tonkin incident in 1964 escalated US involvement in the Vietnam War.

Hence option D is correct

Solution: D

• The Gulf of Tonkin, a shallow present shift body of water, is situated in the South China Sea.

• The Gulf of Tonkin incident in 1964 escalated US involvement in the Vietnam War.

Hence option D is correct

• Question 18 of 30 18. Question 1 points Consider the following pairs: Place in news: Reason Cuba : Aid sent by India post Hurrican Rafael Cabo Verde : Civilian war Burkina Faso : Largest importer of pulses from India How many of the pairs given above are correct? (a) Only one (b) Only two (c) All three (d) None Correct Solution: A Cuba is located in the Northern Caribbean Sea at the confluence of Gulf of Mexico and Atlantic Ocean. It’s capital is Havana- the largest city and a major economic, commercial and industrial hub in the country. Recently the country was devastated by hurricane Rafael; India sent humanitarian aid after the incident. Both the country support each other in international forum such as United Nations, WTO, etc. Hence pair 1 is correct Cabo Verde is a Island nation in the Atlantic Ocean, 570 km west of Senegal Recently the World bank predicted that this West African Archipelago requires $842 million in investment between 2024-2030 to handle its climate and development issues. No civil war is happening in Cabo Verde – a country with a history of stable democracy and peaceful transitions of power. Hence pair 2 is incorrect Burkina Faso is a landlocked country in West Africa located in the Sahel region It has a history marked by political instability and recent military Coup, for which it is often in news. The country do import pulses from India, but at present, the largest importer of pulses from India is Bangladesh (2024). Hence pair 3 is incorrect Incorrect Solution: A Cuba is located in the Northern Caribbean Sea at the confluence of Gulf of Mexico and Atlantic Ocean. It’s capital is Havana- the largest city and a major economic, commercial and industrial hub in the country. Recently the country was devastated by hurricane Rafael; India sent humanitarian aid after the incident. Both the country support each other in international forum such as United Nations, WTO, etc. Hence pair 1 is correct Cabo Verde is a Island nation in the Atlantic Ocean, 570 km west of Senegal Recently the World bank predicted that this West African Archipelago requires $842 million in investment between 2024-2030 to handle its climate and development issues. No civil war is happening in Cabo Verde – a country with a history of stable democracy and peaceful transitions of power. Hence pair 2 is incorrect Burkina Faso is a landlocked country in West Africa located in the Sahel region It has a history marked by political instability and recent military Coup, for which it is often in news. The country do import pulses from India, but at present, the largest importer of pulses from India is Bangladesh (2024). Hence pair 3 is incorrect

#### 18. Question

Consider the following pairs:

Place in news: Reason

• Cuba : Aid sent by India post Hurrican Rafael

• Cabo Verde : Civilian war

• Burkina Faso : Largest importer of pulses from India

How many of the pairs given above are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: A

• Cuba is located in the Northern Caribbean Sea at the confluence of Gulf of Mexico and Atlantic Ocean.

• It’s capital is Havana- the largest city and a major economic, commercial and industrial hub in the country.

• Recently the country was devastated by hurricane Rafael; India sent humanitarian aid after the incident.

• Both the country support each other in international forum such as United Nations, WTO, etc.

Hence pair 1 is correct

• Cabo Verde is a Island nation in the Atlantic Ocean, 570 km west of Senegal

• Recently the World bank predicted that this West African Archipelago requires $842 million in investment between 2024-2030 to handle its climate and development issues.

• No civil war is happening in Cabo Verde – a country with a history of stable democracy and peaceful transitions of power.

Hence pair 2 is incorrect

• Burkina Faso is a landlocked country in West Africa located in the Sahel region

• It has a history marked by political instability and recent military Coup, for which it is often in news.

• The country do import pulses from India, but at present, the largest importer of pulses from India is Bangladesh (2024).

Hence pair 3 is incorrect

Solution: A

• Cuba is located in the Northern Caribbean Sea at the confluence of Gulf of Mexico and Atlantic Ocean.

• It’s capital is Havana- the largest city and a major economic, commercial and industrial hub in the country.

• Recently the country was devastated by hurricane Rafael; India sent humanitarian aid after the incident.

• Both the country support each other in international forum such as United Nations, WTO, etc.

Hence pair 1 is correct

• Cabo Verde is a Island nation in the Atlantic Ocean, 570 km west of Senegal

• Recently the World bank predicted that this West African Archipelago requires $842 million in investment between 2024-2030 to handle its climate and development issues.

• No civil war is happening in Cabo Verde – a country with a history of stable democracy and peaceful transitions of power.

Hence pair 2 is incorrect

• Burkina Faso is a landlocked country in West Africa located in the Sahel region

• It has a history marked by political instability and recent military Coup, for which it is often in news.

• The country do import pulses from India, but at present, the largest importer of pulses from India is Bangladesh (2024).

Hence pair 3 is incorrect

• Question 19 of 30 19. Question 1 points Consider the following statements regarding the Caspian Sea: It is an inland water body that lies East of the Caucasus Mountain, between Asia and Europe. It is a freshwater inland lake with Volga and Ural being the primary water sources. Caspian Sea has significant reserves of oil and natural gas. Which of the statements given above is/are correct? (a) Only one (b) Only two (c) All three (d) None Correct Solution: B The Caspian Sea was once a part of the prehistoric sea known as Paratethys; tectonic forces are lifting the land and a drop in sea level left the Caspian landlocked more than 5 million years ago. It is the world’s largest inland water body technically a lake. It lies between Asia and Europe, east of the Caucasus mountain and west of the central Asian Steppe. Hence statement 1 is correct Three major rivers Volga, Ural and Terek drain into the Caspian Sea. It is technically a lake; but it is not a freshwater lake, it is classified as a brackish water body with salinity lower than that of a typical Ocean (1/3 of ocean water), but higher than freshwater bodies. Hence statement 2 is incorrect Caspian Sea region produces both oil and natural gas and is one of the oldest oil producing areas globally It has significant reserves of natural gas and oil, both onshore and offshore fields, contributing to the production. Hence statement 3 is correct Incorrect Solution: B The Caspian Sea was once a part of the prehistoric sea known as Paratethys; tectonic forces are lifting the land and a drop in sea level left the Caspian landlocked more than 5 million years ago. It is the world’s largest inland water body technically a lake. It lies between Asia and Europe, east of the Caucasus mountain and west of the central Asian Steppe. Hence statement 1 is correct Three major rivers Volga, Ural and Terek drain into the Caspian Sea. It is technically a lake; but it is not a freshwater lake, it is classified as a brackish water body with salinity lower than that of a typical Ocean (1/3 of ocean water), but higher than freshwater bodies. Hence statement 2 is incorrect Caspian Sea region produces both oil and natural gas and is one of the oldest oil producing areas globally It has significant reserves of natural gas and oil, both onshore and offshore fields, contributing to the production. Hence statement 3 is correct

#### 19. Question

Consider the following statements regarding the Caspian Sea:

• It is an inland water body that lies East of the Caucasus Mountain, between Asia and Europe.

• It is a freshwater inland lake with Volga and Ural being the primary water sources.

• Caspian Sea has significant reserves of oil and natural gas.

Which of the statements given above is/are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: B

• The Caspian Sea was once a part of the prehistoric sea known as Paratethys; tectonic forces are lifting the land and a drop in sea level left the Caspian landlocked more than 5 million years ago.

• It is the world’s largest inland water body technically a lake.

• It lies between Asia and Europe, east of the Caucasus mountain and west of the central Asian Steppe.

Hence statement 1 is correct

• Three major rivers Volga, Ural and Terek drain into the Caspian Sea.

• It is technically a lake; but it is not a freshwater lake, it is classified as a brackish water body with salinity lower than that of a typical Ocean (1/3 of ocean water), but higher than freshwater bodies.

Hence statement 2 is incorrect

• Caspian Sea region produces both oil and natural gas and is one of the oldest oil producing areas globally

• It has significant reserves of natural gas and oil, both onshore and offshore fields, contributing to the production.

Hence statement 3 is correct

Solution: B

• The Caspian Sea was once a part of the prehistoric sea known as Paratethys; tectonic forces are lifting the land and a drop in sea level left the Caspian landlocked more than 5 million years ago.

• It is the world’s largest inland water body technically a lake.

• It lies between Asia and Europe, east of the Caucasus mountain and west of the central Asian Steppe.

Hence statement 1 is correct

• Three major rivers Volga, Ural and Terek drain into the Caspian Sea.

Hence statement 2 is incorrect

• Caspian Sea region produces both oil and natural gas and is one of the oldest oil producing areas globally

• It has significant reserves of natural gas and oil, both onshore and offshore fields, contributing to the production.

Hence statement 3 is correct

• Question 20 of 30 20. Question 1 points Consider the following statements: The Makassar Strait separates Tasmania from mainland Australia. The Malacca Strait connects Andaman Sea to the South China Sea. The Sunda Strait connects Java Sea to the Indian Ocean. How many of the statements given above is/are correct? (a) Only one (b) Only two (c) All three (d) None Correct Solution: B The Makassar Strait lies between the Islands of Borneo and Sulawesi in Indonesia. To the north it joins the Celebes Sea and to the South it meets the Java Sea. It is an important regional shipping root in Southeast Asia. The Bass Strait separates Tasmania from Australia Hence statement 1 is incorrect The Malacca Strait is a water way that connects Andaman Sea (Indian Ocean) and the South China Sea (Pacific Ocean). It is the main shipping channel between the Indian and the Pacific Ocean and one of the most important shipping lanes of the world. Hence statement 2 is correct The Sunda Strait lies between the Indonesian Islands of Java and Sumatra. It connects Java Sea with the Indian ocean. Hence statement 3 is correct Incorrect Solution: B The Makassar Strait lies between the Islands of Borneo and Sulawesi in Indonesia. To the north it joins the Celebes Sea and to the South it meets the Java Sea. It is an important regional shipping root in Southeast Asia. The Bass Strait separates Tasmania from Australia Hence statement 1 is incorrect The Malacca Strait is a water way that connects Andaman Sea (Indian Ocean) and the South China Sea (Pacific Ocean). It is the main shipping channel between the Indian and the Pacific Ocean and one of the most important shipping lanes of the world. Hence statement 2 is correct The Sunda Strait lies between the Indonesian Islands of Java and Sumatra. It connects Java Sea with the Indian ocean. Hence statement 3 is correct

#### 20. Question

Consider the following statements:

• The Makassar Strait separates Tasmania from mainland Australia.

• The Malacca Strait connects Andaman Sea to the South China Sea.

• The Sunda Strait connects Java Sea to the Indian Ocean.

How many of the statements given above is/are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: B

• The Makassar Strait lies between the Islands of Borneo and Sulawesi in Indonesia.

• To the north it joins the Celebes Sea and to the South it meets the Java Sea.

• It is an important regional shipping root in Southeast Asia.

• The Bass Strait separates Tasmania from Australia

Hence statement 1 is incorrect

• The Malacca Strait is a water way that connects Andaman Sea (Indian Ocean) and the South China Sea (Pacific Ocean).

• It is the main shipping channel between the Indian and the Pacific Ocean and one of the most important shipping lanes of the world.

Hence statement 2 is correct

• The Sunda Strait lies between the Indonesian Islands of Java and Sumatra.

• It connects Java Sea with the Indian ocean.

Hence statement 3 is correct

Solution: B

• The Makassar Strait lies between the Islands of Borneo and Sulawesi in Indonesia.

• To the north it joins the Celebes Sea and to the South it meets the Java Sea.

• It is an important regional shipping root in Southeast Asia.

• The Bass Strait separates Tasmania from Australia

Hence statement 1 is incorrect

• The Malacca Strait is a water way that connects Andaman Sea (Indian Ocean) and the South China Sea (Pacific Ocean).

• It is the main shipping channel between the Indian and the Pacific Ocean and one of the most important shipping lanes of the world.

Hence statement 2 is correct

• The Sunda Strait lies between the Indonesian Islands of Java and Sumatra.

• It connects Java Sea with the Indian ocean.

Hence statement 3 is correct

• Question 21 of 30 21. Question 1 points Consider the following statements: Statement-I: RBI’s USD/INR swap auction strengthens the Indian Rupee and enhances banking system liquidity without directly contributing to inflation. Statement-II: In the swap, RBI sells dollars in the first leg and buys them back later at a pre-agreed price, thus injecting rupee liquidity through forex reserve utilization. Which one of the following is correct in respect of the above statements? (a) Both statements are correct and Statement-II explains Statement-I (b) Both are correct, but Statement-II does not explain Statement-I (c) Statement-I is correct, but Statement-II is incorrect (d) Statement-I is incorrect, but Statement-II is correct Correct Solution: C Explanation: RBI conducts USD/INR buy/sell swap auctions to manage liquidity and currency stability. In such swaps, banks sell US dollars to RBI in exchange for rupees in the first leg, and agree to buy back the dollars later at a pre-set rate (second leg). This mechanism infuses liquidity into the system without printing new money, as it uses India’s forex reserves. Statement-I is correct because this swap tool supports the rupee (by improving dollar availability) and injects rupee liquidity in a non-inflationary way—unlike traditional bond purchases. However, Statement-II is incorrect. It reverses the mechanism. RBI does not sell dollars in the first leg; it buys them from banks to give them rupees. The confusion in process flow makes the reason invalid even if the broader idea was right. Hence, the correct option is (c). Incorrect Solution: C Explanation: RBI conducts USD/INR buy/sell swap auctions to manage liquidity and currency stability. In such swaps, banks sell US dollars to RBI in exchange for rupees in the first leg, and agree to buy back the dollars later at a pre-set rate (second leg). This mechanism infuses liquidity into the system without printing new money, as it uses India’s forex reserves. Statement-I is correct because this swap tool supports the rupee (by improving dollar availability) and injects rupee liquidity in a non-inflationary way—unlike traditional bond purchases. However, Statement-II is incorrect. It reverses the mechanism. RBI does not sell dollars in the first leg; it buys them from banks to give them rupees. The confusion in process flow makes the reason invalid even if the broader idea was right. Hence, the correct option is (c).

#### 21. Question

Consider the following statements:

Statement-I: RBI’s USD/INR swap auction strengthens the Indian Rupee and enhances banking system liquidity without directly contributing to inflation.

Statement-II: In the swap, RBI sells dollars in the first leg and buys them back later at a pre-agreed price, thus injecting rupee liquidity through forex reserve utilization.

Which one of the following is correct in respect of the above statements?

• (a) Both statements are correct and Statement-II explains Statement-I

• (b) Both are correct, but Statement-II does not explain Statement-I

• (c) Statement-I is correct, but Statement-II is incorrect

• (d) Statement-I is incorrect, but Statement-II is correct

Solution: C

Explanation: RBI conducts USD/INR buy/sell swap auctions to manage liquidity and currency stability. In such swaps, banks sell US dollars to RBI in exchange for rupees in the first leg, and agree to buy back the dollars later at a pre-set rate (second leg). This mechanism infuses liquidity into the system without printing new money, as it uses India’s forex reserves.

Statement-I is correct because this swap tool supports the rupee (by improving dollar availability) and injects rupee liquidity in a non-inflationary way—unlike traditional bond purchases.

However, Statement-II is incorrect. It reverses the mechanism. RBI does not sell dollars in the first leg; it buys them from banks to give them rupees. The confusion in process flow makes the reason invalid even if the broader idea was right.

Hence, the correct option is (c).

Solution: C

Hence, the correct option is (c).

• Question 22 of 30 22. Question 1 points Consider the following statements regarding Anti-Dumping Duty in India: Anti-dumping duties can be recommended by the Ministry of Finance and are levied by the Directorate General of Trade Remedies (DGTR). The imposition of anti-dumping duties by WTO member countries is legally sanctioned under GATT, 1994, provided there is proof of material injury. Which of the above statements is/are correct? (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2 Correct Solution: B Explanation: Statement 1 is incorrect. In India, the Directorate General of Trade Remedies (DGTR) under the Ministry of Commerce investigates and recommends the imposition of anti-dumping duties. The actual levy and notification is done by the Ministry of Finance, not the other way around. Statement 2 is correct. Article 6 of the GATT, 1994, along with the WTO Anti-Dumping Agreement, permits anti-dumping duties if a country can prove that dumped imports are causing “material injury” to a domestic industry. Such measures aim to restore fair trade, not to penalize exporting countries arbitrarily. Incorrect Solution: B Explanation: Statement 1 is incorrect. In India, the Directorate General of Trade Remedies (DGTR) under the Ministry of Commerce investigates and recommends the imposition of anti-dumping duties. The actual levy and notification is done by the Ministry of Finance, not the other way around. Statement 2 is correct. Article 6 of the GATT, 1994, along with the WTO Anti-Dumping Agreement, permits anti-dumping duties if a country can prove that dumped imports are causing “material injury” to a domestic industry. Such measures aim to restore fair trade, not to penalize exporting countries arbitrarily.

#### 22. Question

Consider the following statements regarding Anti-Dumping Duty in India:

• Anti-dumping duties can be recommended by the Ministry of Finance and are levied by the Directorate General of Trade Remedies (DGTR).

• The imposition of anti-dumping duties by WTO member countries is legally sanctioned under GATT, 1994, provided there is proof of material injury.

Which of the above statements is/are correct?

• (a) 1 only

• (b) 2 only

• (c) Both 1 and 2

• (d) Neither 1 nor 2

Solution: B

Explanation: Statement 1 is incorrect. In India, the Directorate General of Trade Remedies (DGTR) under the Ministry of Commerce investigates and recommends the imposition of anti-dumping duties. The actual levy and notification is done by the Ministry of Finance, not the other way around.

Statement 2 is correct. Article 6 of the GATT, 1994, along with the WTO Anti-Dumping Agreement, permits anti-dumping duties if a country can prove that dumped imports are causing “material injury” to a domestic industry. Such measures aim to restore fair trade, not to penalize exporting countries arbitrarily.

Solution: B

• Question 23 of 30 23. Question 1 points With reference to the investment autonomy of Navratna Central Public Sector Enterprises (CPSEs), which of the following statements is correct? (a) They can invest up to ₹2,000 crore in joint ventures without approval. (b) Their investment autonomy is higher than Maharatna CPSEs. (c) They can invest up to ₹1,000 crore or 15% of their net worth, whichever is lower, without government approval. (d) They must seek Cabinet approval for any international strategic acquisition. Correct Solution: C Explanation: Navratna CPSEs are granted greater functional and financial autonomy than Miniratna companies but less than Maharatna CPSEs. One key feature is that they can invest up to ₹1,000 crore or 15% of their net worth, whichever is lower, in a single project without seeking prior government approval. This autonomy enables them to respond quickly to market opportunities and encourages global expansion. Option (a) is incorrect as the limit is ₹1,000 crore, not ₹2,000 crore. Maharatna companies enjoy greater limits than Navratnas, thus eliminating option (b). Option (d) generalizes all acquisitions, but Navratnas have freedom within their autonomy ceiling. Hence, (c) is the correct answer. Incorrect Solution: C Explanation: Navratna CPSEs are granted greater functional and financial autonomy than Miniratna companies but less than Maharatna CPSEs. One key feature is that they can invest up to ₹1,000 crore or 15% of their net worth, whichever is lower, in a single project without seeking prior government approval. This autonomy enables them to respond quickly to market opportunities and encourages global expansion. Option (a) is incorrect as the limit is ₹1,000 crore, not ₹2,000 crore. Maharatna companies enjoy greater limits than Navratnas, thus eliminating option (b). Option (d) generalizes all acquisitions, but Navratnas have freedom within their autonomy ceiling. Hence, (c) is the correct answer.

#### 23. Question

With reference to the investment autonomy of Navratna Central Public Sector Enterprises (CPSEs), which of the following statements is correct?

• (a) They can invest up to ₹2,000 crore in joint ventures without approval.

• (b) Their investment autonomy is higher than Maharatna CPSEs.

• (c) They can invest up to ₹1,000 crore or 15% of their net worth, whichever is lower, without government approval.

• (d) They must seek Cabinet approval for any international strategic acquisition.

Solution: C

Explanation: Navratna CPSEs are granted greater functional and financial autonomy than Miniratna companies but less than Maharatna CPSEs.

• One key feature is that they can invest up to ₹1,000 crore or 15% of their net worth, whichever is lower, in a single project without seeking prior government approval.

• This autonomy enables them to respond quickly to market opportunities and encourages global expansion.

Option (a) is incorrect as the limit is ₹1,000 crore, not ₹2,000 crore. Maharatna companies enjoy greater limits than Navratnas, thus eliminating option (b). Option (d) generalizes all acquisitions, but Navratnas have freedom within their autonomy ceiling. Hence, (c) is the correct answer.

Solution: C

Explanation: Navratna CPSEs are granted greater functional and financial autonomy than Miniratna companies but less than Maharatna CPSEs.

• One key feature is that they can invest up to ₹1,000 crore or 15% of their net worth, whichever is lower, in a single project without seeking prior government approval.

• This autonomy enables them to respond quickly to market opportunities and encourages global expansion.

• Question 24 of 30 24. Question 1 points Consider the following statements: The polar vortex is a transient local phenomenon restricted to the Arctic Ocean. It exists in both the troposphere and the stratosphere, with the latter influencing longer-term climate patterns. A strong polar vortex is associated with a stable and circular jet stream that confines cold air within polar regions. How many of the above statements are correct? (a) Only one (b) Only two (c) All three (d) None Correct Solution: B Explanation: Statement 1 is incorrect. The polar vortex is not a transient or localized event. It is a semi-permanent, large-scale circulation system located over both poles and can influence hemispheric weather patterns, not just over the Arctic Ocean. Statement 2 is correct. The polar vortex has two layers: the tropospheric vortex (up to ~15 km) and the stratospheric vortex (up to ~50 km). The stratospheric version has broader climate implications, including the Sudden Stratospheric Warming (SSW) phenomenon that can reverse wind directions and impact surface weather. Statement 3 is also correct. When the polar vortex is strong, the jet stream remains tight and circular, confining cold air to the poles. This prevents cold surges into mid-latitude regions. Thus, two statements are correct, illustrating a complex interplay of upper atmospheric physics and seasonal weather variability. Incorrect Solution: B Explanation: Statement 1 is incorrect. The polar vortex is not a transient or localized event. It is a semi-permanent, large-scale circulation system located over both poles and can influence hemispheric weather patterns, not just over the Arctic Ocean. Statement 2 is correct. The polar vortex has two layers: the tropospheric vortex (up to ~15 km) and the stratospheric vortex (up to ~50 km). The stratospheric version has broader climate implications, including the Sudden Stratospheric Warming (SSW) phenomenon that can reverse wind directions and impact surface weather. Statement 3 is also correct. When the polar vortex is strong, the jet stream remains tight and circular, confining cold air to the poles. This prevents cold surges into mid-latitude regions. Thus, two statements are correct, illustrating a complex interplay of upper atmospheric physics and seasonal weather variability.

#### 24. Question

Consider the following statements:

• The polar vortex is a transient local phenomenon restricted to the Arctic Ocean.

• It exists in both the troposphere and the stratosphere, with the latter influencing longer-term climate patterns.

• A strong polar vortex is associated with a stable and circular jet stream that confines cold air within polar regions.

How many of the above statements are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: B

Explanation: Statement 1 is incorrect. The polar vortex is not a transient or localized event. It is a semi-permanent, large-scale circulation system located over both poles and can influence hemispheric weather patterns, not just over the Arctic Ocean.

Statement 2 is correct. The polar vortex has two layers: the tropospheric vortex (up to ~15 km) and the stratospheric vortex (up to ~50 km). The stratospheric version has broader climate implications, including the Sudden Stratospheric Warming (SSW) phenomenon that can reverse wind directions and impact surface weather.

Statement 3 is also correct. When the polar vortex is strong, the jet stream remains tight and circular, confining cold air to the poles. This prevents cold surges into mid-latitude regions. Thus, two statements are correct, illustrating a complex interplay of upper atmospheric physics and seasonal weather variability.

Solution: B

• Question 25 of 30 25. Question 1 points Consider the following countries: Germany Poland Ukraine Denmark Russia How many of the above countries border the Baltic Sea? (a) Only two (b) Only three (c) Only four (d) All five Correct Solution: C Explanation Security analysts warn of a high risk of an oil spill in the Baltic Sea due to Russia’s “shadow fleet” of old and technically deficient oil tankers operating without Western insurance. Location & Geography: The Baltic Sea is a semi-enclosed inland sea in Northern Europe, forming an arm of the North Atlantic Ocean. It separates the Scandinavian Peninsula from continental Europe. Connected to the Atlantic Ocean through the Danish Straits. Neighboring Countries: Denmark, Germany, Poland, Lithuania, Latvia, Estonia, Russia, Finland, and Sweden. Major Rivers Flowing into the Baltic Sea: Over 250 rivers drain into the Baltic Sea. The Neva River (Russia) is the largest among them. Key Gulfs: Gulf of Bothnia, Gulf of Finland, Gulf of Riga Incorrect Solution: C Explanation Security analysts warn of a high risk of an oil spill in the Baltic Sea due to Russia’s “shadow fleet” of old and technically deficient oil tankers operating without Western insurance. Location & Geography: The Baltic Sea is a semi-enclosed inland sea in Northern Europe, forming an arm of the North Atlantic Ocean. It separates the Scandinavian Peninsula from continental Europe. Connected to the Atlantic Ocean through the Danish Straits. Neighboring Countries: Denmark, Germany, Poland, Lithuania, Latvia, Estonia, Russia, Finland, and Sweden. Major Rivers Flowing into the Baltic Sea: Over 250 rivers drain into the Baltic Sea. The Neva River (Russia) is the largest among them. Key Gulfs: Gulf of Bothnia, Gulf of Finland, Gulf of Riga

#### 25. Question

Consider the following countries:

How many of the above countries border the Baltic Sea?

• (a) Only two

• (b) Only three

• (c) Only four

• (d) All five

Solution: C

Explanation

Security analysts warn of a high risk of an oil spill in the Baltic Sea due to Russia’s “shadow fleet” of old and technically deficient oil tankers operating without Western insurance.

• Location & Geography:

• The Baltic Sea is a semi-enclosed inland sea in Northern Europe, forming an arm of the North Atlantic Ocean. It separates the Scandinavian Peninsula from continental Europe. Connected to the Atlantic Ocean through the Danish Straits.

• The Baltic Sea is a semi-enclosed inland sea in Northern Europe, forming an arm of the North Atlantic Ocean.

• It separates the Scandinavian Peninsula from continental Europe.

• Connected to the Atlantic Ocean through the Danish Straits.

• Neighboring Countries: Denmark, Germany, Poland, Lithuania, Latvia, Estonia, Russia, Finland, and Sweden.

• Major Rivers Flowing into the Baltic Sea:

• Over 250 rivers drain into the Baltic Sea. The Neva River (Russia) is the largest among them.

• Over 250 rivers drain into the Baltic Sea.

• The Neva River (Russia) is the largest among them.

• Key Gulfs: Gulf of Bothnia, Gulf of Finland, Gulf of Riga

Solution: C

Explanation

Security analysts warn of a high risk of an oil spill in the Baltic Sea due to Russia’s “shadow fleet” of old and technically deficient oil tankers operating without Western insurance.

• Location & Geography:

• The Baltic Sea is a semi-enclosed inland sea in Northern Europe, forming an arm of the North Atlantic Ocean.

• It separates the Scandinavian Peninsula from continental Europe.

• Connected to the Atlantic Ocean through the Danish Straits.

• Neighboring Countries: Denmark, Germany, Poland, Lithuania, Latvia, Estonia, Russia, Finland, and Sweden.

• Major Rivers Flowing into the Baltic Sea:

• Over 250 rivers drain into the Baltic Sea. The Neva River (Russia) is the largest among them.

• Over 250 rivers drain into the Baltic Sea.

• The Neva River (Russia) is the largest among them.

• Key Gulfs: Gulf of Bothnia, Gulf of Finland, Gulf of Riga

• Question 26 of 30 26. Question 1 points Additional Language Learning at School: In some countries, learning another language at school is compulsory, while in others, students can choose their subjects. Although studying languages is important and should be encouraged, it should not be forced. University admissions are highly competitive and based on final marks; making languages mandatory disadvantages those less skilled at them, who might excel elsewhere. While younger students learn languages better, the same applies to music or sports, which are not obligatory. Some students struggle with languages despite early exposure and should not be compelled to study them unnecessarily. However, English might be an exception. As the global lingua franca, a working knowledge of English is now crucial, comparable to mathematics. In the future, universities may offer courses only in English, making its compulsory study justifiable. Yet, mandating additional languages restricts learning choices since the curriculum is already crowded. Until functioning without an extra language becomes impossible, forcing its study is unjustified. In conclusion, while languages are valuable, they should not be a compulsory part of school education. Which of the following is the most logical inference based on the given passage? a. It should be compulsory for students to play tennis or learn an instrument while in school. b. The obligatory learning of English should not be enforced. c. Forcing students to learn language at a young age is good for their learning skills. d. A compulsory language can be a disadvantage for students applying to university. Correct Correct Option: D Justification: Statement 1 is not correct because the passage shows that forcing students to learn any skills is restrictive and should not be done. Statement 2 is not correct because the passage shows that English may be an exception to the rule as the lingua franca of the world. Statement 3 is not correct because the passage shows that all students do not have language learning abilities and this could impact their interest in studies. Statement 4 is correct because being forced to study a language when one does not have the ability or interest can bring down a student’s score and make it difficult to secure admission to a competitive university. Incorrect Correct Option: D Justification: Statement 1 is not correct because the passage shows that forcing students to learn any skills is restrictive and should not be done. Statement 2 is not correct because the passage shows that English may be an exception to the rule as the lingua franca of the world. Statement 3 is not correct because the passage shows that all students do not have language learning abilities and this could impact their interest in studies. Statement 4 is correct because being forced to study a language when one does not have the ability or interest can bring down a student’s score and make it difficult to secure admission to a competitive university.

#### 26. Question

Additional Language Learning at School:

In some countries, learning another language at school is compulsory, while in others, students can choose their subjects. Although studying languages is important and should be encouraged, it should not be forced. University admissions are highly competitive and based on final marks; making languages mandatory disadvantages those less skilled at them, who might excel elsewhere. While younger students learn languages better, the same applies to music or sports, which are not obligatory. Some students struggle with languages despite early exposure and should not be compelled to study them unnecessarily. However, English might be an exception. As the global lingua franca, a working knowledge of English is now crucial, comparable to mathematics. In the future, universities may offer courses only in English, making its compulsory study justifiable. Yet, mandating additional languages restricts learning choices since the curriculum is already crowded. Until functioning without an extra language becomes impossible, forcing its study is unjustified. In conclusion, while languages are valuable, they should not be a compulsory part of school education.

Which of the following is the most logical inference based on the given passage?

• a. It should be compulsory for students to play tennis or learn an instrument while in school.

• b. The obligatory learning of English should not be enforced.

• c. Forcing students to learn language at a young age is good for their learning skills.

• d. A compulsory language can be a disadvantage for students applying to university.

Correct Option: D

Justification:

Statement 1 is not correct because the passage shows that forcing students to learn any skills is restrictive and should not be done. Statement 2 is not correct because the passage shows that English may be an exception to the rule as the lingua franca of the world. Statement 3 is not correct because the passage shows that all students do not have language learning abilities and this could impact their interest in studies. Statement 4 is correct because being forced to study a language when one does not have the ability or interest can bring down a student’s score and make it difficult to secure admission to a competitive university.

Correct Option: D

Justification:

• Question 27 of 30 27. Question 1 points Consider the following statements: Some swords are sharp. All swords are rusty. Conclusions: I. Some rusty things are sharp. II. Some rusty things are not sharp. Which of the above conclusions is/are drawn from the statements ? a. if only conclusion I follows b. if only conclusion II follows c. if either conclusion I or II follows d. if neither conclusion I nor II follows Correct Correct Option: A Justification: Ans: A) if only conclusion I follows Since one premise is particular, the conclusion must be particular and should not contain the middle term. So, I follows. Since both the premises are affirmative, the conclusion cannot be negative. Thus, II does not follow. Incorrect Correct Option: A Justification: Ans: A) if only conclusion I follows Since one premise is particular, the conclusion must be particular and should not contain the middle term. So, I follows. Since both the premises are affirmative, the conclusion cannot be negative. Thus, II does not follow.

#### 27. Question

Consider the following statements:

Some swords are sharp.

All swords are rusty.

Conclusions: I. Some rusty things are sharp.

II. Some rusty things are not sharp.

Which of the above conclusions is/are drawn from the statements ?

• a. if only conclusion I follows

• b. if only conclusion II follows

• c. if either conclusion I or II follows

• d. if neither conclusion I nor II follows

Correct Option: A

Justification:

Ans: A) if only conclusion I follows

Since one premise is particular, the conclusion must be particular and should not contain the middle term. So, I follows. Since both the premises are affirmative, the conclusion cannot be negative. Thus, II does not follow.

Correct Option: A

Justification:

Ans: A) if only conclusion I follows

• Question 28 of 30 28. Question 1 points Consider the following statements: All Carrots are birds. Some telephones are Carrots. All bedsheets are telephone. Conclusion: I. All bedsheet are birds II.Some bedsheets are birds III. Some birds are telephone IV. All telephone are birds Which of the above conclusions is/are drawn from the statements ? a. Only I follows b. Only II follows c. Only I and III follow d. Only III follows Correct Correct Option: D Justification: The diagram gives all the possibilities. But only conclusion III is true. Incorrect Correct Option: D Justification: The diagram gives all the possibilities. But only conclusion III is true.

#### 28. Question

Consider the following statements:

All Carrots are birds.

Some telephones are Carrots.

All bedsheets are telephone.

Conclusion: I. All bedsheet are birds

II.Some bedsheets are birds

III. Some birds are telephone

IV. All telephone are birds

Which of the above conclusions is/are drawn from the statements ?

• a. Only I follows

• b. Only II follows

• c. Only I and III follow

• d. Only III follows

Correct Option: D

Justification:

The diagram gives all the possibilities. But only conclusion III is true.

Correct Option: D

Justification:

The diagram gives all the possibilities. But only conclusion III is true.

• Question 29 of 30 29. Question 1 points Consider the following Bottom of Form statements: At least some apple are bun. Few bun are cup. All cup are dancer. Conclusion: Some apples are cup Some dancer are bun. Which of the above conclusions is/are drawn from the statements ? a. If only I conclusion follows b. If only II conclusion follows c. If both I or II conclusion follows d. If neither I nor II conclusion follows Correct Correct Option: B Justification: Incorrect Correct Option: B Justification:

#### 29. Question

Consider the following Bottom of Form

statements:

At least some apple are bun.

Few bun are cup.

All cup are dancer.

Conclusion:

• Some apples are cup

• Some dancer are bun.

Which of the above conclusions is/are drawn from the statements ?

• a. If only I conclusion follows

• b. If only II conclusion follows

• c. If both I or II conclusion follows

• d. If neither I nor II conclusion follows

Correct Option: B

Justification:

Correct Option: B

Justification:

• Question 30 of 30 30. Question 1 points A boy is playing a Snake & Ladder game; he is on 91 and has to get to 100 to complete the game. There is a snake on 93 and 96. In how many ways he can complete the game, if he doesn’t want to roll the dice more than three times. a. 20 b. 15 c. 16 d. 18 Correct Correct Option: C Justification: 91 –92 — 93 — 94 — 95 — 96 — 97 — 98 — 99 — 100 Total position advance needed = 100 – 91 = 9 One roll of dice can’t complete the game. If he completes in two roll of dice. Possible dice throws are – (3&6), (4&5), (5&4), (6&3) But (5&4) will bring the token on 96, so this is rejected. If he completes the game in three roll of dices First dice reading options are 1,3,4,6 After checking all option and rejecting those in which token reaches on 93 or 96 Possible dice throws are (1,2,6), (1,3,5),(1,5,3), (1,6,2) ; (3,1,5),(3,3,3),(3,4,2),(3,5,1); (4,2,3),(4,3,2),(4,4,1) (6, 1, 2), (6, 2, 1) Total number of ways = 16 Hence, option C is correct. Incorrect Correct Option: C Justification: 91 –92 — 93 — 94 — 95 — 96 — 97 — 98 — 99 — 100 Total position advance needed = 100 – 91 = 9 One roll of dice can’t complete the game. If he completes in two roll of dice. Possible dice throws are – (3&6), (4&5), (5&4), (6&3) But (5&4) will bring the token on 96, so this is rejected. If he completes the game in three roll of dices First dice reading options are 1,3,4,6 After checking all option and rejecting those in which token reaches on 93 or 96 Possible dice throws are (1,2,6), (1,3,5),(1,5,3), (1,6,2) ; (3,1,5),(3,3,3),(3,4,2),(3,5,1); (4,2,3),(4,3,2),(4,4,1) (6, 1, 2), (6, 2, 1) Total number of ways = 16 Hence, option C is correct. Justification: To find the code for ‘we’. We need to have the following. ‘We are friends’ should have only ‘We’ common with another statement, as in statement 2. ‘We are friends’ should have only ‘are’ and ‘friends’ common with another single or two statements as in 1 and 3. Thus, we need either 2 only or 1 and 3 only.

#### 30. Question

A boy is playing a Snake & Ladder game; he is on 91 and has to get to 100 to complete the game. There is a snake on 93 and 96. In how many ways he can complete the game, if he doesn’t want to roll the dice more than three times.

Correct Option: C

Justification:

91 –92 — 93 — 94 — 95 — 96 — 97 — 98 — 99 — 100

Total position advance needed = 100 – 91 = 9

One roll of dice can’t complete the game.

If he completes in two roll of dice.

Possible dice throws are – (3&6), (4&5), (5&4), (6&3)

But (5&4) will bring the token on 96, so this is rejected.

If he completes the game in three roll of dices

First dice reading options are 1,3,4,6

After checking all option and rejecting those in which token reaches on 93 or 96

Possible dice throws are (1,2,6), (1,3,5),(1,5,3), (1,6,2) ;

(3,1,5),(3,3,3),(3,4,2),(3,5,1);

(4,2,3),(4,3,2),(4,4,1)

(6, 1, 2), (6, 2, 1)

Total number of ways = 16

Hence, option C is correct.

Correct Option: C

Justification:

91 –92 — 93 — 94 — 95 — 96 — 97 — 98 — 99 — 100

Total position advance needed = 100 – 91 = 9

One roll of dice can’t complete the game.

If he completes in two roll of dice.

Possible dice throws are – (3&6), (4&5), (5&4), (6&3)

But (5&4) will bring the token on 96, so this is rejected.

If he completes the game in three roll of dices

First dice reading options are 1,3,4,6

After checking all option and rejecting those in which token reaches on 93 or 96

Possible dice throws are (1,2,6), (1,3,5),(1,5,3), (1,6,2) ;

(3,1,5),(3,3,3),(3,4,2),(3,5,1);

(4,2,3),(4,3,2),(4,4,1)

(6, 1, 2), (6, 2, 1)

Total number of ways = 16

Hence, option C is correct.

Justification:

To find the code for ‘we’. We need to have the following.

‘We are friends’ should have only ‘We’ common with another statement, as in statement 2.

‘We are friends’ should have only ‘are’ and ‘friends’ common with another single or two statements as in 1 and 3.