UPSC Static Quiz – Geography : 12 November 2025

UPSC Static Quiz – Geography : 12 November 2025 We will post 5 questions daily on static topics mentioned in the UPSC civil services preliminary examination syllabus. Each week will focus on a specific topic from the syllabus, such as History of India and Indian National Movement, Indian and World Geography, and more. We are excited to bring you our daily UPSC Static Quiz, designed to help you prepare for the UPSC Civil Services Preliminary Examination. Each day, we will post 5 questions on static topics mentioned in the UPSC syllabus. This week, we are focusing on Indian and World Geography.

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• Question 1 of 5 1. Question Consider the following statements regarding Salinization of soil: It is the process of accumulation of soluble salts in the soil, primarily in the B-horizon. It is a common problem in arid and semi-arid regions with high rates of evaporation and poor drainage. The application of excessive irrigation water with a high mineral content can induce secondary salinization. How many of the above statements are correct? (a) Only one (b) Only two (c) All three (d) None Correct Solution: B Statement 1 is incorrect. While salinization is the accumulation of soluble salts (like sodium chloride, calcium sulfate), this accumulation occurs primarily at or near the soil surface (A-horizon), not in the B-horizon. In arid regions, water containing dissolved salts is drawn upwards from the groundwater table through capillary action. When this water evaporates at the surface, it leaves the salts behind, forming a white crust. Statement 2 is correct. Salinization is most prevalent in arid and semi-arid climates. These regions are characterized by low rainfall and high rates of evapotranspiration. This climatic condition promotes the upward movement of saline groundwater. The problem is exacerbated in areas with poor drainage, such as flat plains or basins, where water cannot effectively flush the salts out of the soil profile. Statement 3 is correct. This describes secondary or human-induced salinization. When land is irrigated, especially with water that has a significant dissolved salt content, a portion of this water evaporates, leaving salts in the soil. If irrigation is excessive and drainage is poor, the water table can rise, bringing more salts to the surface. This is a major agricultural problem in many irrigated areas around the world, including parts of the Indo-Gangetic plain. Incorrect Solution: B Statement 1 is incorrect. While salinization is the accumulation of soluble salts (like sodium chloride, calcium sulfate), this accumulation occurs primarily at or near the soil surface (A-horizon), not in the B-horizon. In arid regions, water containing dissolved salts is drawn upwards from the groundwater table through capillary action. When this water evaporates at the surface, it leaves the salts behind, forming a white crust. Statement 2 is correct. Salinization is most prevalent in arid and semi-arid climates. These regions are characterized by low rainfall and high rates of evapotranspiration. This climatic condition promotes the upward movement of saline groundwater. The problem is exacerbated in areas with poor drainage, such as flat plains or basins, where water cannot effectively flush the salts out of the soil profile. Statement 3 is correct. This describes secondary or human-induced salinization. When land is irrigated, especially with water that has a significant dissolved salt content, a portion of this water evaporates, leaving salts in the soil. If irrigation is excessive and drainage is poor, the water table can rise, bringing more salts to the surface. This is a major agricultural problem in many irrigated areas around the world, including parts of the Indo-Gangetic plain.

#### 1. Question

Consider the following statements regarding Salinization of soil:

• It is the process of accumulation of soluble salts in the soil, primarily in the B-horizon.

• It is a common problem in arid and semi-arid regions with high rates of evaporation and poor drainage.

• The application of excessive irrigation water with a high mineral content can induce secondary salinization.

How many of the above statements are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: B

• Statement 1 is incorrect. While salinization is the accumulation of soluble salts (like sodium chloride, calcium sulfate), this accumulation occurs primarily at or near the soil surface (A-horizon), not in the B-horizon. In arid regions, water containing dissolved salts is drawn upwards from the groundwater table through capillary action. When this water evaporates at the surface, it leaves the salts behind, forming a white crust.

• Statement 2 is correct. Salinization is most prevalent in arid and semi-arid climates. These regions are characterized by low rainfall and high rates of evapotranspiration. This climatic condition promotes the upward movement of saline groundwater. The problem is exacerbated in areas with poor drainage, such as flat plains or basins, where water cannot effectively flush the salts out of the soil profile.

• Statement 3 is correct. This describes secondary or human-induced salinization. When land is irrigated, especially with water that has a significant dissolved salt content, a portion of this water evaporates, leaving salts in the soil. If irrigation is excessive and drainage is poor, the water table can rise, bringing more salts to the surface. This is a major agricultural problem in many irrigated areas around the world, including parts of the Indo-Gangetic plain.

Solution: B

• Question 2 of 5 2. Question Consider the following statements about the Desert biome: The formation of many of the world’s major hot deserts is associated with their location in subtropical high-pressure belts. Desert soils are often rich in mineral nutrients but poor in organic matter. The process of calcification is absent in desert soils due to the lack of water. How many of the above statements are correct? a) Only one b) Only two c) All three d) None Correct Solution: B Statement 1 is correct. The world’s great hot deserts, such as the Sahara, Arabian, and Australian deserts, are located roughly between 20° and 30° latitude in both hemispheres. This zone corresponds to the subtropical high-pressure belts (or horse latitudes). In these belts, air from the upper atmosphere descends, warms, and dries out, inhibiting cloud formation and precipitation, leading to arid conditions. Statement 2 is correct. Desert soils (Aridisols) typically have very low organic matter content because the sparse vegetation provides little litter, and the lack of moisture limits biological activity. However, because there is very little rainfall to cause leaching, soluble mineral nutrients (like calcium, potassium, and magnesium) are often present in abundance. This is why desert soils can be very productive if irrigated. Statement 3 is incorrect. The process of calcification is actually a dominant pedogenic process in desert and semi-desert soils. Due to low rainfall and high evaporation, water moving upwards through capillary action evaporates at the surface, leaving behind precipitated calcium carbonate. This often forms a hardened layer in the subsoil known as a caliche or hardpan. The lack of water prevents leaching and promotes Incorrect Solution: B Statement 1 is correct. The world’s great hot deserts, such as the Sahara, Arabian, and Australian deserts, are located roughly between 20° and 30° latitude in both hemispheres. This zone corresponds to the subtropical high-pressure belts (or horse latitudes). In these belts, air from the upper atmosphere descends, warms, and dries out, inhibiting cloud formation and precipitation, leading to arid conditions. Statement 2 is correct. Desert soils (Aridisols) typically have very low organic matter content because the sparse vegetation provides little litter, and the lack of moisture limits biological activity. However, because there is very little rainfall to cause leaching, soluble mineral nutrients (like calcium, potassium, and magnesium) are often present in abundance. This is why desert soils can be very productive if irrigated. Statement 3 is incorrect. The process of calcification is actually a dominant pedogenic process in desert and semi-desert soils. Due to low rainfall and high evaporation, water moving upwards through capillary action evaporates at the surface, leaving behind precipitated calcium carbonate. This often forms a hardened layer in the subsoil known as a caliche or hardpan. The lack of water prevents leaching and promotes

#### 2. Question

Consider the following statements about the Desert biome:

• The formation of many of the world’s major hot deserts is associated with their location in subtropical high-pressure belts.

• Desert soils are often rich in mineral nutrients but poor in organic matter.

• The process of calcification is absent in desert soils due to the lack of water.

How many of the above statements are correct?

• a) Only one

• b) Only two

• c) All three

Solution: B

• Statement 1 is correct. The world’s great hot deserts, such as the Sahara, Arabian, and Australian deserts, are located roughly between 20° and 30° latitude in both hemispheres. This zone corresponds to the subtropical high-pressure belts (or horse latitudes). In these belts, air from the upper atmosphere descends, warms, and dries out, inhibiting cloud formation and precipitation, leading to arid conditions.

• Statement 2 is correct. Desert soils (Aridisols) typically have very low organic matter content because the sparse vegetation provides little litter, and the lack of moisture limits biological activity. However, because there is very little rainfall to cause leaching, soluble mineral nutrients (like calcium, potassium, and magnesium) are often present in abundance. This is why desert soils can be very productive if irrigated.

• Statement 3 is incorrect. The process of calcification is actually a dominant pedogenic process in desert and semi-desert soils. Due to low rainfall and high evaporation, water moving upwards through capillary action evaporates at the surface, leaving behind precipitated calcium carbonate. This often forms a hardened layer in the subsoil known as a caliche or hardpan. The lack of water prevents leaching and promotes

Solution: B

• Question 3 of 5 3. Question The Great Rift Valley of Africa is a prime example of a landscape formed by which tectonic process? (a) Compressional forces leading to the formation of a synclinorium. (b) Subduction of an oceanic plate beneath a continental plate. (c) Tensional forces causing the continental crust to diverge and thin. (d) A transform fault boundary where two plates slide past each other horizontally. Correct Solution: C The Great Rift Valley is one of the most significant physical features on Earth, stretching thousands of kilometers from the Middle East to Mozambique. Its formation is a classic illustration of a divergent plate boundary occurring within a continental landmass. Statement (c) correctly identifies the underlying mechanism. Tensional forces, driven by upwelling magma from the mantle, are pulling the African Plate apart. Specifically, the Somali Plate is moving eastward away from the larger Nubian Plate. This stretching and pulling action causes the continental crust to fracture, thin, and subside between parallel faults, creating the characteristic elongated valley, or graben. This process is the initial stage of continental rifting, which, if it continues for millions of years, could lead to the formation of a new ocean basin. Incorrect Solution: C The Great Rift Valley is one of the most significant physical features on Earth, stretching thousands of kilometers from the Middle East to Mozambique. Its formation is a classic illustration of a divergent plate boundary occurring within a continental landmass. Statement (c) correctly identifies the underlying mechanism. Tensional forces, driven by upwelling magma from the mantle, are pulling the African Plate apart. Specifically, the Somali Plate is moving eastward away from the larger Nubian Plate. This stretching and pulling action causes the continental crust to fracture, thin, and subside between parallel faults, creating the characteristic elongated valley, or graben. This process is the initial stage of continental rifting, which, if it continues for millions of years, could lead to the formation of a new ocean basin.

#### 3. Question

The Great Rift Valley of Africa is a prime example of a landscape formed by which tectonic process?

• (a) Compressional forces leading to the formation of a synclinorium.

• (b) Subduction of an oceanic plate beneath a continental plate.

• (c) Tensional forces causing the continental crust to diverge and thin.

• (d) A transform fault boundary where two plates slide past each other horizontally.

Solution: C

• The Great Rift Valley is one of the most significant physical features on Earth, stretching thousands of kilometers from the Middle East to Mozambique. Its formation is a classic illustration of a divergent plate boundary occurring within a continental landmass.

• Statement (c) correctly identifies the underlying mechanism. Tensional forces, driven by upwelling magma from the mantle, are pulling the African Plate apart. Specifically, the Somali Plate is moving eastward away from the larger Nubian Plate. This stretching and pulling action causes the continental crust to fracture, thin, and subside between parallel faults, creating the characteristic elongated valley, or graben. This process is the initial stage of continental rifting, which, if it continues for millions of years, could lead to the formation of a new ocean basin.

Solution: C

• Question 4 of 5 4. Question Consider the following statements about geomorphic processes: Orogenic processes are primarily responsible for the broad, gentle uplift or subsidence of large continental areas without significant folding or faulting. Slumping is a type of mass movement characterized by the rapid, chaotic flow of water-saturated soil and debris down a steep slope. Chemical weathering processes, such as oxidation and hydrolysis, are most dominant in hot, arid desert climates due to high temperatures. How many of the above statements are correct? (a) Only one (b) Only two (c) All three (d) None Correct Solution: D Statement 1 is incorrect. It incorrectly describes epeirogenic processes (continental building). Orogenic processes (mountain building) involve intense crustal deformation, including severe folding and faulting, typically affecting long, narrow belts of the Earth’s crust. Statement 2 is incorrect. It describes a mudflow or debris flow. Slumping is a distinct type of mass movement where a mass of rock and regolith moves a short distance down a slope along a curved, concave-upward slip surface. The movement is rotational, not a chaotic flow. Statement 3 is incorrect. While high temperatures can accelerate chemical reactions, the key ingredient for most chemical weathering processes is water. Hot, arid desert climates lack sufficient moisture for processes like hydrolysis and carbonation to be dominant. Chemical weathering is most intense in hot and wet (humid) climates, such as the tropics. Incorrect Solution: D Statement 1 is incorrect. It incorrectly describes epeirogenic processes (continental building). Orogenic processes (mountain building) involve intense crustal deformation, including severe folding and faulting, typically affecting long, narrow belts of the Earth’s crust. Statement 2 is incorrect. It describes a mudflow or debris flow. Slumping is a distinct type of mass movement where a mass of rock and regolith moves a short distance down a slope along a curved, concave-upward slip surface. The movement is rotational, not a chaotic flow. Statement 3 is incorrect. While high temperatures can accelerate chemical reactions, the key ingredient for most chemical weathering processes is water. Hot, arid desert climates lack sufficient moisture for processes like hydrolysis and carbonation to be dominant. Chemical weathering is most intense in hot and wet (humid) climates, such as the tropics.

#### 4. Question

Consider the following statements about geomorphic processes:

• Orogenic processes are primarily responsible for the broad, gentle uplift or subsidence of large continental areas without significant folding or faulting.

• Slumping is a type of mass movement characterized by the rapid, chaotic flow of water-saturated soil and debris down a steep slope.

• Chemical weathering processes, such as oxidation and hydrolysis, are most dominant in hot, arid desert climates due to high temperatures.

How many of the above statements are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: D

• Statement 1 is incorrect. It incorrectly describes epeirogenic processes (continental building). Orogenic processes (mountain building) involve intense crustal deformation, including severe folding and faulting, typically affecting long, narrow belts of the Earth’s crust.

• Statement 2 is incorrect. It describes a mudflow or debris flow. Slumping is a distinct type of mass movement where a mass of rock and regolith moves a short distance down a slope along a curved, concave-upward slip surface. The movement is rotational, not a chaotic flow.

• Statement 3 is incorrect. While high temperatures can accelerate chemical reactions, the key ingredient for most chemical weathering processes is water. Hot, arid desert climates lack sufficient moisture for processes like hydrolysis and carbonation to be dominant. Chemical weathering is most intense in hot and wet (humid) climates, such as the tropics.

Solution: D

• Question 5 of 5 5. Question Which of the following statements correctly describes the Aravalli Range? It is a classic example of a young fold mountain system with conical peaks. It acts as a major water divide between the Indus and the Ganga river systems. It extends from Gujarat to Delhi in a southwest to northeast direction. Its highest peak, Guru Shikhar, is located in the state of Rajasthan. Select the correct answer using the code given below. (a) 1 and 2 only (b) 3 and 4 only (c) 1, 2 and 3 only (d) 2, 3 and 4 only Correct Solution: B Statement 1 is incorrect. The Aravalli Range is one of the oldest fold mountain systems in the world, not a young one. It was formed during the Precambrian era. Due to prolonged periods of erosion and denudation over millions of years, it has been worn down and now exhibits the characteristics of a relict or residual mountain, with rounded peaks and low altitudes, not conical peaks typical of young mountains like the Himalayas. Statement 2 is incorrect. The Aravalli Range does act as a water divide, but not between the Indus and Ganga systems on a large scale. The primary water divide between the Indus and Ganga systems is the Delhi Ridge and the Ambala region further north. The Aravallis primarily separate the west-flowing rivers (like Luni, which flows into the Rann of Kutch) from the rivers that flow eastwards to join the Yamuna-Ganga system (like the Banas, a tributary of the Chambal). Statement 3 is correct. The Aravalli Range extends for about 800 km in a southwest to northeast direction, starting from near Palanpur in Gujarat, running across Rajasthan, and ending at the Delhi Ridge. Statement 4 is correct. The highest peak of the Aravalli Range is Guru Shikhar, with an altitude of 1,722 meters. It is located in the Abu Hills in the Sirohi district of Rajasthan. Incorrect Solution: B Statement 1 is incorrect. The Aravalli Range is one of the oldest fold mountain systems in the world, not a young one. It was formed during the Precambrian era. Due to prolonged periods of erosion and denudation over millions of years, it has been worn down and now exhibits the characteristics of a relict or residual mountain, with rounded peaks and low altitudes, not conical peaks typical of young mountains like the Himalayas. Statement 2 is incorrect. The Aravalli Range does act as a water divide, but not between the Indus and Ganga systems on a large scale. The primary water divide between the Indus and Ganga systems is the Delhi Ridge and the Ambala region further north. The Aravallis primarily separate the west-flowing rivers (like Luni, which flows into the Rann of Kutch) from the rivers that flow eastwards to join the Yamuna-Ganga system (like the Banas, a tributary of the Chambal). Statement 3 is correct. The Aravalli Range extends for about 800 km in a southwest to northeast direction, starting from near Palanpur in Gujarat, running across Rajasthan, and ending at the Delhi Ridge. Statement 4 is correct. The highest peak of the Aravalli Range is Guru Shikhar, with an altitude of 1,722 meters. It is located in the Abu Hills in the Sirohi district of Rajasthan.

#### 5. Question

Which of the following statements correctly describes the Aravalli Range?

• It is a classic example of a young fold mountain system with conical peaks.

• It acts as a major water divide between the Indus and the Ganga river systems.

• It extends from Gujarat to Delhi in a southwest to northeast direction.

• Its highest peak, Guru Shikhar, is located in the state of Rajasthan.

Select the correct answer using the code given below.

• (a) 1 and 2 only

• (b) 3 and 4 only

• (c) 1, 2 and 3 only

• (d) 2, 3 and 4 only

Solution: B

• Statement 1 is incorrect. The Aravalli Range is one of the oldest fold mountain systems in the world, not a young one. It was formed during the Precambrian era. Due to prolonged periods of erosion and denudation over millions of years, it has been worn down and now exhibits the characteristics of a relict or residual mountain, with rounded peaks and low altitudes, not conical peaks typical of young mountains like the Himalayas.

• Statement 2 is incorrect. The Aravalli Range does act as a water divide, but not between the Indus and Ganga systems on a large scale. The primary water divide between the Indus and Ganga systems is the Delhi Ridge and the Ambala region further north. The Aravallis primarily separate the west-flowing rivers (like Luni, which flows into the Rann of Kutch) from the rivers that flow eastwards to join the Yamuna-Ganga system (like the Banas, a tributary of the Chambal).

• Statement 3 is correct. The Aravalli Range extends for about 800 km in a southwest to northeast direction, starting from near Palanpur in Gujarat, running across Rajasthan, and ending at the Delhi Ridge.

• Statement 4 is correct. The highest peak of the Aravalli Range is Guru Shikhar, with an altitude of 1,722 meters. It is located in the Abu Hills in the Sirohi district of Rajasthan.

Solution: B

• Statement 4 is correct. The highest peak of the Aravalli Range is Guru Shikhar, with an altitude of 1,722 meters. It is located in the Abu Hills in the Sirohi district of Rajasthan.

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