UPSC Current Affairs Quiz : 5 February 2026

The Current Affairs Quiz is a daily quiz based on the DAILY CURRENT AFFAIRS AND PIB SUMMARY from the previous day, as posted on our website. It covers all relevant news sources and is designed to test your knowledge of current events. Solving these questions will help you retain both concepts and facts relevant to the UPSC IAS civil services exam.

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• Question 1 of 10 1. Question 1 points Match the contaminant with its primary source: Contaminant Source A. Arsenic 1. Agricultural Runoff B. Nitrates 2. Industrial Discharge C. Heavy Metals 3. Geogenic Select the correct match: (a) A-2, B-3, C-1 (b) A-3, B-1, C-2 (c) A-2, B-1, C-3 (d) A-1, B-2, C-3 Correct Solution: B Arsenic (A) contamination in India is primarily geogenic (3), meaning it occurs naturally in the earth’s crust. It gets mobilized into Gangetic aquifers due to groundwater pumping. Nitrates (B) are a major contaminant from agricultural runoff (1). The overuse of nitrogen-based fertilizers in farming leads to the leaching of nitrates into the groundwater. Heavy Metals (C) such as lead, cadmium, and mercury are typically released from industrial discharge (2). Industrial processes often produce wastewater laden with these toxic metals, which can seep into and contaminate groundwater sources. Incorrect Solution: B Arsenic (A) contamination in India is primarily geogenic (3), meaning it occurs naturally in the earth’s crust. It gets mobilized into Gangetic aquifers due to groundwater pumping. Nitrates (B) are a major contaminant from agricultural runoff (1). The overuse of nitrogen-based fertilizers in farming leads to the leaching of nitrates into the groundwater. Heavy Metals (C) such as lead, cadmium, and mercury are typically released from industrial discharge (2). Industrial processes often produce wastewater laden with these toxic metals, which can seep into and contaminate groundwater sources.

#### 1. Question

Match the contaminant with its primary source:

Contaminant | Source

A. Arsenic | 1. Agricultural Runoff

B. Nitrates | 2. Industrial Discharge

C. Heavy Metals | 3. Geogenic

Select the correct match:

• (a) A-2, B-3, C-1

• (b) A-3, B-1, C-2

• (c) A-2, B-1, C-3

• (d) A-1, B-2, C-3

Solution: B

• Arsenic (A) contamination in India is primarily geogenic (3), meaning it occurs naturally in the earth’s crust. It gets mobilized into Gangetic aquifers due to groundwater pumping.

• Nitrates (B) are a major contaminant from agricultural runoff (1). The overuse of nitrogen-based fertilizers in farming leads to the leaching of nitrates into the groundwater.

• Heavy Metals (C) such as lead, cadmium, and mercury are typically released from industrial discharge (2). Industrial processes often produce wastewater laden with these toxic metals, which can seep into and contaminate groundwater sources.

Solution: B

• Arsenic (A) contamination in India is primarily geogenic (3), meaning it occurs naturally in the earth’s crust. It gets mobilized into Gangetic aquifers due to groundwater pumping.

• Nitrates (B) are a major contaminant from agricultural runoff (1). The overuse of nitrogen-based fertilizers in farming leads to the leaching of nitrates into the groundwater.

• Question 2 of 10 2. Question 1 points Consider the following statements: Statement I: The Election Commission of India exercises administrative, quasi-judicial, and advisory powers. Statement II: The enforcement of the Model Code of Conduct and the delimitation of constituencies are part of the ECI’s quasi-judicial functions. Statement III: Advising the President on the disqualification of members of Parliament is a key advisory function of the ECI. Which one of the following is correct in respect of the above statements? (a) Both Statement II and Statement III are correct and both of them explain Statement I. (b) Both Statement II and Statement III are correct but only one of them explains Statement I. (c) Only one of the Statements II and III is correct and that explains Statement I. (d) Neither Statement II nor Statement III is correct. Correct Solution: C Statement I provides a correct, overarching summary of the ECI’s powers. It operates in administrative, quasi-judicial, and advisory capacities. Statement II is incorrect. The enforcement of the Model Code of Conduct and the delimitation of constituencies are administrative functions, not quasi-judicial. Administrative functions relate to the management and conduct of elections. Quasi-judicial functions, on the other hand, involve settling disputes, such as those between political party factions. Statement III is correct. Advising the President (in the case of MPs) or the Governor (in the case of MLAs) on matters of disqualification of sitting members is a crucial advisory function of the ECI. This advice is binding. Therefore, only Statement III is a correct example that explains a component of Statement I. Incorrect Solution: C Statement I provides a correct, overarching summary of the ECI’s powers. It operates in administrative, quasi-judicial, and advisory capacities. Statement II is incorrect. The enforcement of the Model Code of Conduct and the delimitation of constituencies are administrative functions, not quasi-judicial. Administrative functions relate to the management and conduct of elections. Quasi-judicial functions, on the other hand, involve settling disputes, such as those between political party factions. Statement III is correct. Advising the President (in the case of MPs) or the Governor (in the case of MLAs) on matters of disqualification of sitting members is a crucial advisory function of the ECI. This advice is binding. Therefore, only Statement III is a correct example that explains a component of Statement I.

#### 2. Question

Consider the following statements:

Statement I: The Election Commission of India exercises administrative, quasi-judicial, and advisory powers.

Statement II: The enforcement of the Model Code of Conduct and the delimitation of constituencies are part of the ECI’s quasi-judicial functions.

Statement III: Advising the President on the disqualification of members of Parliament is a key advisory function of the ECI.

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

• (a) Both Statement II and Statement III are correct and both of them explain Statement I.

• (b) Both Statement II and Statement III are correct but only one of them explains Statement I.

• (c) Only one of the Statements II and III is correct and that explains Statement I.

• (d) Neither Statement II nor Statement III is correct.

Solution: C

• Statement I provides a correct, overarching summary of the ECI’s powers. It operates in administrative, quasi-judicial, and advisory capacities.

• Statement II is incorrect. The enforcement of the Model Code of Conduct and the delimitation of constituencies are administrative functions, not quasi-judicial. Administrative functions relate to the management and conduct of elections. Quasi-judicial functions, on the other hand, involve settling disputes, such as those between political party factions.

• Statement III is correct. Advising the President (in the case of MPs) or the Governor (in the case of MLAs) on matters of disqualification of sitting members is a crucial advisory function of the ECI. This advice is binding.

• Therefore, only Statement III is a correct example that explains a component of Statement I.

Solution: C

• Statement I provides a correct, overarching summary of the ECI’s powers. It operates in administrative, quasi-judicial, and advisory capacities.

• Therefore, only Statement III is a correct example that explains a component of Statement I.

• Question 3 of 10 3. Question 1 points Consider the following statements regarding the Kakori Train Robbery: The action was carried out by members of the Hindustan Socialist Republican Association (HSRA) to fund their activities. The incident resulted in the capture and execution of all key participants, including Chandrashekhar Azad. The robbery took place on a train carrying a British government treasury between Saharanpur and Lucknow. How many of the above statements are incorrect? (a) Only one (b) Only two (c) All three (d) None Correct Solution: B Statement 1 is incorrect. The robbery was conducted on 9 August 1925 by members of the Hindustan Republican Association (HRA). The organisation was later reorganised and renamed the Hindustan Socialist Republican Association (HSRA) in 1928, after the incident, under leaders like Bhagat Singh. Statement 2 is incorrect. While key figures like Ram Prasad Bismil, Ashfaqulla Khan, Rajendra Lahiri, and Roshan Singh were captured and hanged, Chandrashekhar Azad successfully evaded capture and continued his revolutionary activities for several years until his death in 1931. Statement 3 is correct. The revolutionaries targeted the 8-Down train travelling from Saharanpur to Lucknow, as it was known to be carrying British government treasury funds, which they intended to seize for their movement. Therefore, only one statement is correct. Incorrect Solution: B Statement 1 is incorrect. The robbery was conducted on 9 August 1925 by members of the Hindustan Republican Association (HRA). The organisation was later reorganised and renamed the Hindustan Socialist Republican Association (HSRA) in 1928, after the incident, under leaders like Bhagat Singh. Statement 2 is incorrect. While key figures like Ram Prasad Bismil, Ashfaqulla Khan, Rajendra Lahiri, and Roshan Singh were captured and hanged, Chandrashekhar Azad successfully evaded capture and continued his revolutionary activities for several years until his death in 1931. Statement 3 is correct. The revolutionaries targeted the 8-Down train travelling from Saharanpur to Lucknow, as it was known to be carrying British government treasury funds, which they intended to seize for their movement. Therefore, only one statement is correct.

#### 3. Question

Consider the following statements regarding the Kakori Train Robbery:

• The action was carried out by members of the Hindustan Socialist Republican Association (HSRA) to fund their activities.

• The incident resulted in the capture and execution of all key participants, including Chandrashekhar Azad.

• The robbery took place on a train carrying a British government treasury between Saharanpur and Lucknow.

How many of the above statements are incorrect?

• (a) Only one

• (b) Only two

• (c) All three

Solution: B

• Statement 1 is incorrect. The robbery was conducted on 9 August 1925 by members of the Hindustan Republican Association (HRA). The organisation was later reorganised and renamed the Hindustan Socialist Republican Association (HSRA) in 1928, after the incident, under leaders like Bhagat Singh.

• Statement 2 is incorrect. While key figures like Ram Prasad Bismil, Ashfaqulla Khan, Rajendra Lahiri, and Roshan Singh were captured and hanged, Chandrashekhar Azad successfully evaded capture and continued his revolutionary activities for several years until his death in 1931.

• Statement 3 is correct. The revolutionaries targeted the 8-Down train travelling from Saharanpur to Lucknow, as it was known to be carrying British government treasury funds, which they intended to seize for their movement. Therefore, only one statement is correct.

Solution: B

• Question 4 of 10 4. Question 1 points Consider the following statements regarding Tritium: It is a radioactive isotope of hydrogen whose nucleus contains one proton and three neutrons. It poses a significant health risk through external exposure as its high-energy beta radiation can penetrate human skin. Which of the above statements are incorrect? (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2 Correct Solution: C Statement 1 is incorrect. Tritium (³H) is an isotope of hydrogen, but its nucleus contains one proton and two neutrons, not three. This gives it a mass number of 3. Statement 2 is incorrect. Tritium emits low-energy beta radiation. This type of radiation cannot penetrate human skin, making it a low external hazard. The primary risk from tritium is from internal exposure (inhalation or ingestion), where it can irradiate cells from within the body. Incorrect Solution: C Statement 1 is incorrect. Tritium (³H) is an isotope of hydrogen, but its nucleus contains one proton and two neutrons, not three. This gives it a mass number of 3. Statement 2 is incorrect. Tritium emits low-energy beta radiation. This type of radiation cannot penetrate human skin, making it a low external hazard. The primary risk from tritium is from internal exposure (inhalation or ingestion), where it can irradiate cells from within the body.

#### 4. Question

Consider the following statements regarding Tritium:

• It is a radioactive isotope of hydrogen whose nucleus contains one proton and three neutrons.

• It poses a significant health risk through external exposure as its high-energy beta radiation can penetrate human skin.

Which of the above statements are incorrect?

• (a) 1 only

• (b) 2 only

• (c) Both 1 and 2

• (d) Neither 1 nor 2

Solution: C

• Statement 1 is incorrect. Tritium (³H) is an isotope of hydrogen, but its nucleus contains one proton and two neutrons, not three. This gives it a mass number of 3.

Statement 2 is incorrect. Tritium emits low-energy beta radiation. This type of radiation cannot penetrate human skin, making it a low external hazard. The primary risk from tritium is from internal exposure (inhalation or ingestion), where it can irradiate cells from within the body.

Solution: C

• Statement 1 is incorrect. Tritium (³H) is an isotope of hydrogen, but its nucleus contains one proton and two neutrons, not three. This gives it a mass number of 3.

• Question 5 of 10 5. Question 1 points Consider the following statements regarding Satellite Internet technology: Statement I: Geostationary (GEO) satellites are ideal for low-latency applications due to their fixed position relative to the Earth’s surface. Statement II: Low Earth Orbit (LEO) satellites require a large constellation to provide continuous global coverage because of their smaller footprint and rapid movement. Statement III: The “seamless handover” process is a critical feature for MEO (Medium Earth Orbit) satellite constellations to maintain uninterrupted service for a stationary user. How many of the above statements are correct? (a) Only one (b) Only two (c) All three (d) None Correct Solution: A Statement I is incorrect. While GEO satellites have a stable position and provide wide coverage from their high altitude (~35,786 km), this great distance results in high latency (signal delay). This makes them unsuitable for real-time, low-latency applications like online gaming or video conferencing. Statement II is correct. LEO satellites orbit at a much lower altitude (<2,000 km), resulting in a smaller area of coverage on the ground (a smaller footprint). Because they move rapidly across the sky, a large number of interconnected satellites—a “mega-constellation”—is necessary to ensure that as one satellite moves out of a user’s range, another is already in position to take over the connection, thus providing continuous service. Statement III is incorrect. The “seamless handover” process is most critical for LEO satellite systems, not MEO, due to their very high speed and short time over any given location. The system must rapidly and automatically switch the user’s connection from one satellite to the next to avoid service disruption. While handovers occur in MEO systems, the frequency and speed are far less demanding than in LEO constellations. Incorrect Solution: A Statement I is incorrect. While GEO satellites have a stable position and provide wide coverage from their high altitude (~35,786 km), this great distance results in high latency (signal delay). This makes them unsuitable for real-time, low-latency applications like online gaming or video conferencing. Statement II is correct. LEO satellites orbit at a much lower altitude (<2,000 km), resulting in a smaller area of coverage on the ground (a smaller footprint). Because they move rapidly across the sky, a large number of interconnected satellites—a “mega-constellation”—is necessary to ensure that as one satellite moves out of a user’s range, another is already in position to take over the connection, thus providing continuous service. Statement III is incorrect. The “seamless handover” process is most critical for LEO satellite systems, not MEO, due to their very high speed and short time over any given location. The system must rapidly and automatically switch the user’s connection from one satellite to the next to avoid service disruption. While handovers occur in MEO systems, the frequency and speed are far less demanding than in LEO constellations.

#### 5. Question

Consider the following statements regarding Satellite Internet technology:

Statement I: Geostationary (GEO) satellites are ideal for low-latency applications due to their fixed position relative to the Earth’s surface.

Statement II: Low Earth Orbit (LEO) satellites require a large constellation to provide continuous global coverage because of their smaller footprint and rapid movement.

Statement III: The “seamless handover” process is a critical feature for MEO (Medium Earth Orbit) satellite constellations to maintain uninterrupted service for a stationary user.

How many of the above statements are correct?

• (a) Only one

• (b) Only two

• (c) All three

Solution: A

• Statement I is incorrect. While GEO satellites have a stable position and provide wide coverage from their high altitude (~35,786 km), this great distance results in high latency (signal delay). This makes them unsuitable for real-time, low-latency applications like online gaming or video conferencing.

• Statement II is correct. LEO satellites orbit at a much lower altitude (<2,000 km), resulting in a smaller area of coverage on the ground (a smaller footprint). Because they move rapidly across the sky, a large number of interconnected satellites—a “mega-constellation”—is necessary to ensure that as one satellite moves out of a user’s range, another is already in position to take over the connection, thus providing continuous service.

• Statement III is incorrect. The “seamless handover” process is most critical for LEO satellite systems, not MEO, due to their very high speed and short time over any given location. The system must rapidly and automatically switch the user’s connection from one satellite to the next to avoid service disruption. While handovers occur in MEO systems, the frequency and speed are far less demanding than in LEO constellations.

Solution: A

• Question 6 of 10 6. Question 1 points Consider the following statements about hydroponics: Hydroponics relies on nutrient-rich soil that is periodically flooded and drained to nourish plants. This method is best suited for outdoor environments where ample sunlight can support plant growth. Hydroponics allows for greater control over nutrient levels, which can result in higher yields in limited spaces. How many of the above statements is/are correct? a) Only one b) Only two c) All three d) None Correct Solution: A Statement 1 is incorrect because hydroponics is a soil-free method; instead, it uses nutrient-rich water solutions to grow plants, eliminating the need for soil. Statement 2 is also incorrect, as hydroponics is often used in controlled indoor environments rather than outdoors. This setup allows for precise control of light, temperature, and nutrients, essential in spaces where outdoor conditions are unfavorable. Statement 3 is correct; hydroponics offers significant control over nutrient levels, water, and growth conditions, leading to higher yields even in limited spaces. The controlled environment reduces risks of pests and diseases, and maximizes efficiency, making it ideal for urban agriculture or areas with limited agricultural land. Incorrect Solution: A Statement 1 is incorrect because hydroponics is a soil-free method; instead, it uses nutrient-rich water solutions to grow plants, eliminating the need for soil. Statement 2 is also incorrect, as hydroponics is often used in controlled indoor environments rather than outdoors. This setup allows for precise control of light, temperature, and nutrients, essential in spaces where outdoor conditions are unfavorable. Statement 3 is correct; hydroponics offers significant control over nutrient levels, water, and growth conditions, leading to higher yields even in limited spaces. The controlled environment reduces risks of pests and diseases, and maximizes efficiency, making it ideal for urban agriculture or areas with limited agricultural land.

#### 6. Question

Consider the following statements about hydroponics:

• Hydroponics relies on nutrient-rich soil that is periodically flooded and drained to nourish plants.

• This method is best suited for outdoor environments where ample sunlight can support plant growth.

• Hydroponics allows for greater control over nutrient levels, which can result in higher yields in limited spaces.

How many of the above statements is/are correct?

• a) Only one

• b) Only two

• c) All three

Solution: A

Statement 1 is incorrect because hydroponics is a soil-free method; instead, it uses nutrient-rich water solutions to grow plants, eliminating the need for soil.

Statement 2 is also incorrect, as hydroponics is often used in controlled indoor environments rather than outdoors. This setup allows for precise control of light, temperature, and nutrients, essential in spaces where outdoor conditions are unfavorable.

Statement 3 is correct; hydroponics offers significant control over nutrient levels, water, and growth conditions, leading to higher yields even in limited spaces. The controlled environment reduces risks of pests and diseases, and maximizes efficiency, making it ideal for urban agriculture or areas with limited agricultural land.

Solution: A

Statement 1 is incorrect because hydroponics is a soil-free method; instead, it uses nutrient-rich water solutions to grow plants, eliminating the need for soil.

• Question 7 of 10 7. Question 1 points Match the following Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) International Monitoring System (IMS) technologies with their respective purposes: List I (Technology) List II (Purpose) A. Seismic 1. Detects underwater nuclear explosions B. Hydroacoustic 2. Detects low-frequency sounds from atmospheric nuclear explosions C. Infrasound 3. Monitors ground shockwaves from underground explosions D. Radionuclide 4. Confirms nuclear explosions by detecting radioactive particles Select the correct answer code: a) A-2, B-3, C-4, D-1 b) A-3, B-1, C-2, D-4 c) A-1, B-2, C-3, D-4 d) A-1, B-3, C-2, D-4 Correct Solution: B A (Seismic) – 3: Seismic technology detects ground shockwaves and vibrations, making it effective for monitoring underground nuclear explosions. B (Hydroacoustic) – 1: Hydroacoustic technology identifies underwater nuclear explosions by monitoring sound waves that travel through water. C (Infrasound) – 2: Infrasound technology is designed to detect low-frequency sounds in the atmosphere, useful for identifying atmospheric nuclear tests. D (Radionuclide) – 4: Radionuclide technology confirms nuclear tests by detecting radioactive particles in the air, which are direct indicators of nuclear explosions. Incorrect Solution: B A (Seismic) – 3: Seismic technology detects ground shockwaves and vibrations, making it effective for monitoring underground nuclear explosions. B (Hydroacoustic) – 1: Hydroacoustic technology identifies underwater nuclear explosions by monitoring sound waves that travel through water. C (Infrasound) – 2: Infrasound technology is designed to detect low-frequency sounds in the atmosphere, useful for identifying atmospheric nuclear tests. D (Radionuclide) – 4: Radionuclide technology confirms nuclear tests by detecting radioactive particles in the air, which are direct indicators of nuclear explosions.

#### 7. Question

Match the following Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) International Monitoring System (IMS) technologies with their respective purposes:

List I (Technology) | List II (Purpose)

A. Seismic | 1. Detects underwater nuclear explosions

B. Hydroacoustic | 2. Detects low-frequency sounds from atmospheric nuclear explosions

C. Infrasound | 3. Monitors ground shockwaves from underground explosions

D. Radionuclide | 4. Confirms nuclear explosions by detecting radioactive particles

Select the correct answer code:

• a) A-2, B-3, C-4, D-1

• b) A-3, B-1, C-2, D-4

• c) A-1, B-2, C-3, D-4

• d) A-1, B-3, C-2, D-4

Solution: B

• A (Seismic) – 3: Seismic technology detects ground shockwaves and vibrations, making it effective for monitoring underground nuclear explosions.

• B (Hydroacoustic) – 1: Hydroacoustic technology identifies underwater nuclear explosions by monitoring sound waves that travel through water.

• C (Infrasound) – 2: Infrasound technology is designed to detect low-frequency sounds in the atmosphere, useful for identifying atmospheric nuclear tests.

• D (Radionuclide) – 4: Radionuclide technology confirms nuclear tests by detecting radioactive particles in the air, which are direct indicators of nuclear explosions.

Solution: B

• A (Seismic) – 3: Seismic technology detects ground shockwaves and vibrations, making it effective for monitoring underground nuclear explosions.

• B (Hydroacoustic) – 1: Hydroacoustic technology identifies underwater nuclear explosions by monitoring sound waves that travel through water.

• C (Infrasound) – 2: Infrasound technology is designed to detect low-frequency sounds in the atmosphere, useful for identifying atmospheric nuclear tests.

• D (Radionuclide) – 4: Radionuclide technology confirms nuclear tests by detecting radioactive particles in the air, which are direct indicators of nuclear explosions.

• Question 8 of 10 8. Question 1 points A patient in a rural sub-Saharan African community presents with fever, headaches, and enlarged lymph nodes. A few months later, the patient develops confusion, poor coordination, and a severely disrupted sleep cycle. Which of the following is the most likely diagnosis and cause? (a) Dengue Fever, caused by a virus transmitted by a mosquito. (b) Malaria, caused by a protozoan transmitted by a mosquito. (c) Human African Trypanosomiasis, caused by a protozoan transmitted by a tsetse fly. (d) Rabies, caused by a virus transmitted via a dog bite. Correct Solution: C The progression of symptoms described is a classic presentation of Human African Trypanosomiasis (sleeping sickness). The initial symptoms—fever, headaches, enlarged lymph nodes—correspond to the first (haemo-lymphatic) stage of the disease, where the parasite is in the blood and lymphatic system. The later onset of confusion, poor coordination, and a disrupted sleep cycle are hallmark signs of the second (neurological) stage. This occurs when the Trypanosoma parasite crosses the blood-brain barrier and affects the central nervous system. The location (rural sub-Saharan Africa) and the vector (tsetse fly) are also consistent with the epidemiology of sleeping sickness. Incorrect Solution: C The progression of symptoms described is a classic presentation of Human African Trypanosomiasis (sleeping sickness). The initial symptoms—fever, headaches, enlarged lymph nodes—correspond to the first (haemo-lymphatic) stage of the disease, where the parasite is in the blood and lymphatic system. The later onset of confusion, poor coordination, and a disrupted sleep cycle are hallmark signs of the second (neurological) stage. This occurs when the Trypanosoma parasite crosses the blood-brain barrier and affects the central nervous system. The location (rural sub-Saharan Africa) and the vector (tsetse fly) are also consistent with the epidemiology of sleeping sickness.

#### 8. Question

A patient in a rural sub-Saharan African community presents with fever, headaches, and enlarged lymph nodes. A few months later, the patient develops confusion, poor coordination, and a severely disrupted sleep cycle. Which of the following is the most likely diagnosis and cause?

• (a) Dengue Fever, caused by a virus transmitted by a mosquito.

• (b) Malaria, caused by a protozoan transmitted by a mosquito.

• (c) Human African Trypanosomiasis, caused by a protozoan transmitted by a tsetse fly.

• (d) Rabies, caused by a virus transmitted via a dog bite.

Solution: C

• The progression of symptoms described is a classic presentation of Human African Trypanosomiasis (sleeping sickness).

• The initial symptoms—fever, headaches, enlarged lymph nodes—correspond to the first (haemo-lymphatic) stage of the disease, where the parasite is in the blood and lymphatic system. The later onset of confusion, poor coordination, and a disrupted sleep cycle are hallmark signs of the second (neurological) stage.

This occurs when the Trypanosoma parasite crosses the blood-brain barrier and affects the central nervous system. The location (rural sub-Saharan Africa) and the vector (tsetse fly) are also consistent with the epidemiology of sleeping sickness.

Solution: C

• The progression of symptoms described is a classic presentation of Human African Trypanosomiasis (sleeping sickness).

• Question 9 of 10 9. Question 1 points Regarding Primary Amoebic Meningoencephalitis (PAM), consider the following statements: It is a contagious disease that can spread from person to person through respiratory droplets. The causative organism, Naegleria fowleri, thrives in warm freshwater environments. The infection is primarily contracted by drinking contaminated water. Which of the above statements are correct? (a) 2 only (b) 1 and 2 only (c) 2 and 3 only (d) 1, 2 and 3 Correct Solution: A Primary Amoebic Meningoencephalitis (PAM) is a rare but extremely fatal brain infection. Statement 1 is incorrect because PAM is not a contagious disease and does not spread from one person to another. Statement 2 is correct, as the causative agent, *Naegleria fowleri*, is a thermophilic (heat-loving) amoeba that is typically found in warm freshwater bodies like lakes, rivers, and poorly maintained swimming pools. It can survive in temperatures up to 46°C. Statement 3 is also incorrect. The infection is not caused by drinking contaminated water. Instead, the amoeba enters the body through the nose when a person is swimming or diving in contaminated water. From the nasal passages, the amoeba travels to the brain and causes severe inflammation and destruction of brain tissue. The rapid progression of the disease and the lack of a single effective cure contribute to its high fatality rate. Incorrect Solution: A Primary Amoebic Meningoencephalitis (PAM) is a rare but extremely fatal brain infection. Statement 1 is incorrect because PAM is not a contagious disease and does not spread from one person to another. Statement 2 is correct, as the causative agent, *Naegleria fowleri*, is a thermophilic (heat-loving) amoeba that is typically found in warm freshwater bodies like lakes, rivers, and poorly maintained swimming pools. It can survive in temperatures up to 46°C. Statement 3 is also incorrect. The infection is not caused by drinking contaminated water. Instead, the amoeba enters the body through the nose when a person is swimming or diving in contaminated water. From the nasal passages, the amoeba travels to the brain and causes severe inflammation and destruction of brain tissue. The rapid progression of the disease and the lack of a single effective cure contribute to its high fatality rate.

#### 9. Question

Regarding Primary Amoebic Meningoencephalitis (PAM), consider the following statements:

• It is a contagious disease that can spread from person to person through respiratory droplets.

• The causative organism, Naegleria fowleri, thrives in warm freshwater environments.

• The infection is primarily contracted by drinking contaminated water.

Which of the above statements are correct?

• (a) 2 only

• (b) 1 and 2 only

• (c) 2 and 3 only

• (d) 1, 2 and 3

Solution: A

• Primary Amoebic Meningoencephalitis (PAM) is a rare but extremely fatal brain infection.

• Statement 1 is incorrect because PAM is not a contagious disease and does not spread from one person to another.

• Statement 2 is correct, as the causative agent, *Naegleria fowleri*, is a thermophilic (heat-loving) amoeba that is typically found in warm freshwater bodies like lakes, rivers, and poorly maintained swimming pools. It can survive in temperatures up to 46°C.

Statement 3 is also incorrect. The infection is not caused by drinking contaminated water. Instead, the amoeba enters the body through the nose when a person is swimming or diving in contaminated water. From the nasal passages, the amoeba travels to the brain and causes severe inflammation and destruction of brain tissue. The rapid progression of the disease and the lack of a single effective cure contribute to its high fatality rate.

Solution: A

• Primary Amoebic Meningoencephalitis (PAM) is a rare but extremely fatal brain infection.

• Statement 1 is incorrect because PAM is not a contagious disease and does not spread from one person to another.

• Question 10 of 10 10. Question 1 points Consider the following pairs: Mineral Significance 1. Lithium Essential for electric vehicle batteries 2. Cobalt Used in the manufacturing of high-strength alloys 3. Nickel A key component in stainless steel production How many of the above pairs are correctly matched? (a) Only one (b) Only two (c) All three (d) None Correct Solution: C Lithium is a critical component in the manufacturing of rechargeable batteries, which are essential for electric vehicles (EVs), smartphones, and laptops. Its high energy density and lightweight nature make it indispensable for modern battery technology. Cobalt is another crucial element in lithium-ion batteries, but it is also widely used in the production of high-strength, corrosion-resistant superalloys used in jet engines and gas turbines. Nickel is a versatile metal with numerous applications. One of its primary uses is in the production of stainless steel, where it imparts strength, ductility, and resistance to corrosion. It is also an important component in certain types of batteries. Incorrect Solution: C Lithium is a critical component in the manufacturing of rechargeable batteries, which are essential for electric vehicles (EVs), smartphones, and laptops. Its high energy density and lightweight nature make it indispensable for modern battery technology. Cobalt is another crucial element in lithium-ion batteries, but it is also widely used in the production of high-strength, corrosion-resistant superalloys used in jet engines and gas turbines. Nickel is a versatile metal with numerous applications. One of its primary uses is in the production of stainless steel, where it imparts strength, ductility, and resistance to corrosion. It is also an important component in certain types of batteries.

#### 10. Question

Consider the following pairs:

Mineral | Significance

1.Lithium | Essential for electric vehicle batteries
2.Cobalt | Used in the manufacturing of high-strength alloys
3.Nickel | A key component in stainless steel production

How many of the above pairs are correctly matched?

• (a) Only one

• (b) Only two

• (c) All three

Solution: C

• Lithium is a critical component in the manufacturing of rechargeable batteries, which are essential for electric vehicles (EVs), smartphones, and laptops. Its high energy density and lightweight nature make it indispensable for modern battery technology.

• Cobalt is another crucial element in lithium-ion batteries, but it is also widely used in the production of high-strength, corrosion-resistant superalloys used in jet engines and gas turbines.

• Nickel is a versatile metal with numerous applications. One of its primary uses is in the production of stainless steel, where it imparts strength, ductility, and resistance to corrosion. It is also an important component in certain types of batteries.

Solution: C

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