UPSC Editorials Quiz : 22 October 2025
Kartavya Desk Staff
Introducing QUED – Questions from Editorials (UPSC Editorials Quiz) , an innovative initiative from InsightsIAS. Considering the significant number of questions in previous UPSC Prelims from editorials, practicing MCQs from this perspective can provide an extra edge. While we cover important editorials separately in our Editorial Section and SECURE Initiative, adding QUED (UPSC Editorials Quiz) to your daily MCQ practice alongside Static Quiz, Current Affairs Quiz, and InstaDART can be crucial for better performance. We recommend utilizing this initiative to enhance your preparation, with 5 MCQs posted daily at 11 am from Monday to Saturday on our website under the QUIZ menu.
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• Question 1 of 5 1. Question Consider the following statements regarding uranium enrichment: Natural uranium contains a higher percentage of U-235 than U-238. Low-enriched uranium (LEU) is enriched to 3-5% U-235 concentration, suitable for nuclear reactors. The process of uranium enrichment produces plutonium-239 as a byproduct. How many of the above statements is/are incorrect? (a) Only one (b) Only two (c) All three (d) None Correct Solution: B Natural uranium contains 0.7% U-235 and 99.3% U-238, making statement 1 incorrect. Low-enriched uranium (LEU) is enriched to 3-5% U-235 for use in nuclear reactors, making statement 2 correct. Uranium enrichment does not produce plutonium-239; plutonium is produced in reactors through neutron absorption in U-238, making statement 3 incorrect. Incorrect Solution: B Natural uranium contains 0.7% U-235 and 99.3% U-238, making statement 1 incorrect. Low-enriched uranium (LEU) is enriched to 3-5% U-235 for use in nuclear reactors, making statement 2 correct. Uranium enrichment does not produce plutonium-239; plutonium is produced in reactors through neutron absorption in U-238, making statement 3 incorrect.
#### 1. Question
Consider the following statements regarding uranium enrichment:
• Natural uranium contains a higher percentage of U-235 than U-238.
• Low-enriched uranium (LEU) is enriched to 3-5% U-235 concentration, suitable for nuclear reactors.
• The process of uranium enrichment produces plutonium-239 as a byproduct.
How many of the above statements is/are incorrect?
• (a) Only one
• (b) Only two
• (c) All three
Solution: B
Natural uranium contains 0.7% U-235 and 99.3% U-238, making statement 1 incorrect.
Low-enriched uranium (LEU) is enriched to 3-5% U-235 for use in nuclear reactors, making statement 2 correct.
Uranium enrichment does not produce plutonium-239; plutonium is produced in reactors through neutron absorption in U-238, making statement 3 incorrect.
Solution: B
Natural uranium contains 0.7% U-235 and 99.3% U-238, making statement 1 incorrect.
Low-enriched uranium (LEU) is enriched to 3-5% U-235 for use in nuclear reactors, making statement 2 correct.
Uranium enrichment does not produce plutonium-239; plutonium is produced in reactors through neutron absorption in U-238, making statement 3 incorrect.
• Question 2 of 5 2. Question What is the primary cause of High-Altitude Sickness? a) Rapid cooling of body temperature due to high winds b) Excessive hydration at high altitudes c) Reduced oxygen levels in the air at high elevations d) Increased atmospheric pressure at higher altitudes Correct Solution: C High-Altitude Sickness occurs due to reduced oxygen availability at elevations above 8,000 feet, leading to hypoxia in body tissues. Atmospheric pressure decreases with altitude, but excessive hydration or cooling is not the primary cause of the condition. What is High-Altitude Sickness? Definition: High-Altitude Sickness, also known as Acute Mountain Sickness (AMS), occurs when the body struggles to acclimatize to low oxygen levels at elevations above 8,000 feet (2,400 meters). Types: HAPE: High-Altitude Pulmonary Edema (fluid in lungs). HACE: High-Altitude Cerebral Edema (fluid in brain). Symptoms: Headache, nausea, fatigue, shortness of breath, confusion, and, in severe cases, coma. Why Does It Happen? Low Oxygen Levels: Reduced oxygen in the air leads to hypoxia in body tissues. Physiological Strain: Hyperventilation increases breathing rate. Thicker blood due to increased red blood cell production strains the heart. Rapid Ascent: Climbing too quickly without acclimatizing exacerbates risks. Incorrect Solution: C High-Altitude Sickness occurs due to reduced oxygen availability at elevations above 8,000 feet, leading to hypoxia in body tissues. Atmospheric pressure decreases with altitude, but excessive hydration or cooling is not the primary cause of the condition. What is High-Altitude Sickness? Definition: High-Altitude Sickness, also known as Acute Mountain Sickness (AMS), occurs when the body struggles to acclimatize to low oxygen levels at elevations above 8,000 feet (2,400 meters). Types: HAPE: High-Altitude Pulmonary Edema (fluid in lungs). HACE: High-Altitude Cerebral Edema (fluid in brain). Symptoms: Headache, nausea, fatigue, shortness of breath, confusion, and, in severe cases, coma. Why Does It Happen? Low Oxygen Levels: Reduced oxygen in the air leads to hypoxia in body tissues. Physiological Strain: Hyperventilation increases breathing rate. Thicker blood due to increased red blood cell production strains the heart. Rapid Ascent: Climbing too quickly without acclimatizing exacerbates risks.
#### 2. Question
What is the primary cause of High-Altitude Sickness?
• a) Rapid cooling of body temperature due to high winds
• b) Excessive hydration at high altitudes
• c) Reduced oxygen levels in the air at high elevations
• d) Increased atmospheric pressure at higher altitudes
Solution: C
High-Altitude Sickness occurs due to reduced oxygen availability at elevations above 8,000 feet, leading to hypoxia in body tissues. Atmospheric pressure decreases with altitude, but excessive hydration or cooling is not the primary cause of the condition.
What is High-Altitude Sickness?
• Definition: High-Altitude Sickness, also known as Acute Mountain Sickness (AMS), occurs when the body struggles to acclimatize to low oxygen levels at elevations above 8,000 feet (2,400 meters).
• Types: HAPE: High-Altitude Pulmonary Edema (fluid in lungs). HACE: High-Altitude Cerebral Edema (fluid in brain).
• HAPE: High-Altitude Pulmonary Edema (fluid in lungs).
• HACE: High-Altitude Cerebral Edema (fluid in brain).
• Symptoms: Headache, nausea, fatigue, shortness of breath, confusion, and, in severe cases, coma.
Why Does It Happen?
• Low Oxygen Levels: Reduced oxygen in the air leads to hypoxia in body tissues.
• Physiological Strain: Hyperventilation increases breathing rate. Thicker blood due to increased red blood cell production strains the heart.
• Hyperventilation increases breathing rate.
• Thicker blood due to increased red blood cell production strains the heart.
• Rapid Ascent: Climbing too quickly without acclimatizing exacerbates risks.
Solution: C
High-Altitude Sickness occurs due to reduced oxygen availability at elevations above 8,000 feet, leading to hypoxia in body tissues. Atmospheric pressure decreases with altitude, but excessive hydration or cooling is not the primary cause of the condition.
What is High-Altitude Sickness?
• Definition: High-Altitude Sickness, also known as Acute Mountain Sickness (AMS), occurs when the body struggles to acclimatize to low oxygen levels at elevations above 8,000 feet (2,400 meters).
• Types: HAPE: High-Altitude Pulmonary Edema (fluid in lungs). HACE: High-Altitude Cerebral Edema (fluid in brain).
• HAPE: High-Altitude Pulmonary Edema (fluid in lungs).
• HACE: High-Altitude Cerebral Edema (fluid in brain).
• Symptoms: Headache, nausea, fatigue, shortness of breath, confusion, and, in severe cases, coma.
Why Does It Happen?
• Low Oxygen Levels: Reduced oxygen in the air leads to hypoxia in body tissues.
• Physiological Strain: Hyperventilation increases breathing rate. Thicker blood due to increased red blood cell production strains the heart.
• Hyperventilation increases breathing rate.
• Thicker blood due to increased red blood cell production strains the heart.
• Rapid Ascent: Climbing too quickly without acclimatizing exacerbates risks.
• Question 3 of 5 3. Question Which of the following is a key ecological significance of the Thrissur-Ponnani Kole Wetlands? a) It is located in the Western Ghats Biosphere Reserve. b) It provides 40% of Kerala’s fish requirement. c) It prevents saline intrusion into the Arabian Sea. d) It is a major stopover for birds along the Central Asian Flyway. Correct Solution: D The wetlands are part of the Central Asian Flyway and serve as an important stopover for migratory bird species. About Thrissur-Ponnani Kole Wetlands: Location:Spreads across Thrissur and Malappuram districts in Kerala, India. Significance: Provides 40% of Kerala’s rice requirement. Acts as a natural drainage system for Thrissur city, Ponnani city, and surrounding districts. Part of the Central Asian Flyway, supporting migratory bird species. Boundaries:Lies between Chalakudy River (South) and Bharathappuzha River (North), extending to Ponnani Taluk. Hydrological Network:Connects to Enamavu River, Canoli Canal, Chettuva River, and flows into the Arabian Sea. Soil Fertility:Enriched by alluvium soil deposited by Kechery and Karuvannoor rivers during monsoons. Incorrect Solution: D The wetlands are part of the Central Asian Flyway and serve as an important stopover for migratory bird species. About Thrissur-Ponnani Kole Wetlands: Location:Spreads across Thrissur and Malappuram districts in Kerala, India. Significance: Provides 40% of Kerala’s rice requirement. Acts as a natural drainage system for Thrissur city, Ponnani city, and surrounding districts. Part of the Central Asian Flyway, supporting migratory bird species. Boundaries:Lies between Chalakudy River (South) and Bharathappuzha River (North), extending to Ponnani Taluk. Hydrological Network:Connects to Enamavu River, Canoli Canal, Chettuva River, and flows into the Arabian Sea. Soil Fertility:Enriched by alluvium soil deposited by Kechery and Karuvannoor rivers during monsoons.
#### 3. Question
Which of the following is a key ecological significance of the Thrissur-Ponnani Kole Wetlands?
• a) It is located in the Western Ghats Biosphere Reserve.
• b) It provides 40% of Kerala’s fish requirement.
• c) It prevents saline intrusion into the Arabian Sea.
• d) It is a major stopover for birds along the Central Asian Flyway.
Solution: D
The wetlands are part of the Central Asian Flyway and serve as an important stopover for migratory bird species.
About Thrissur-Ponnani Kole Wetlands:
• Location:Spreads across Thrissur and Malappuram districts in Kerala, India.
• Significance:
• Provides 40% of Kerala’s rice requirement.
• Acts as a natural drainage system for Thrissur city, Ponnani city, and surrounding districts.
• Part of the Central Asian Flyway, supporting migratory bird species.
• Boundaries:Lies between Chalakudy River (South) and Bharathappuzha River (North), extending to Ponnani Taluk.
• Hydrological Network:Connects to Enamavu River, Canoli Canal, Chettuva River, and flows into the Arabian Sea.
• Soil Fertility:Enriched by alluvium soil deposited by Kechery and Karuvannoor rivers during monsoons.
Solution: D
The wetlands are part of the Central Asian Flyway and serve as an important stopover for migratory bird species.
About Thrissur-Ponnani Kole Wetlands:
• Location:Spreads across Thrissur and Malappuram districts in Kerala, India.
• Significance:
• Provides 40% of Kerala’s rice requirement.
• Acts as a natural drainage system for Thrissur city, Ponnani city, and surrounding districts.
• Part of the Central Asian Flyway, supporting migratory bird species.
• Boundaries:Lies between Chalakudy River (South) and Bharathappuzha River (North), extending to Ponnani Taluk.
• Hydrological Network:Connects to Enamavu River, Canoli Canal, Chettuva River, and flows into the Arabian Sea.
• Soil Fertility:Enriched by alluvium soil deposited by Kechery and Karuvannoor rivers during monsoons.
• Question 4 of 5 4. Question Space junk can lead to which of the following impacts on the atmosphere? a) Accumulation of sulfur in the troposphere b) Formation of polar ice caps c) Promotion of polar vortex intensification d) Alteration of atmospheric chemistry Correct Solution: D Space junk releases metals and pollutants like aluminum, copper, and soot, altering atmospheric chemistry and promoting cloud formation. Incorrect Solution: D Space junk releases metals and pollutants like aluminum, copper, and soot, altering atmospheric chemistry and promoting cloud formation.
#### 4. Question
Space junk can lead to which of the following impacts on the atmosphere?
• a) Accumulation of sulfur in the troposphere
• b) Formation of polar ice caps
• c) Promotion of polar vortex intensification
• d) Alteration of atmospheric chemistry
Solution: D
Space junk releases metals and pollutants like aluminum, copper, and soot, altering atmospheric chemistry and promoting cloud formation.
Solution: D
Space junk releases metals and pollutants like aluminum, copper, and soot, altering atmospheric chemistry and promoting cloud formation.
• Question 5 of 5 5. Question Consider the following statements regarding Brihadeeswarar Temple’s architectural features: The stupika on the vimana is square-shaped, reflecting early Chola design principles. The temple lacks any gopuras (gateway towers) in its complex. Its inscriptions primarily document myths and legends, with no references to historical events or rituals. 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: The stupika (dome) is octagonal, not square-shaped. Statement 2 is incorrect: The temple has two large gopuras adorned with intricate sculptures. Statement 3 is incorrect: The inscriptions detail historical events, rituals, gifts, and construction overseen by Raja Raja Chola I. About Brihadeeswarar Temple (Rajarajeswaram) Location:Thanjavur, Tamil Nadu, part of the UNESCO “Great Living Chola Temples.” Era:Built in 1009 CE by Raja Raja Chola I, it is the largest and tallest Indian temple. Design: Features a massive 70-meter pyramidal vimana with an octagonal dome-shaped stupika. Two large gopuras adorned with intricate sculptures. Sanctum houses a two-storey lingam of Lord Shiva. Cultural Significance:Repository of Tamil inscriptions detailing rituals, gifts, and the temple’s construction overseen by Raja Raja Chola himself. Artistry:Painted murals, sculptural narratives, and stucco figures (added later during the Maratha period). Other Chola Temples: Gangaikonda Cholapuram (by Rajendra I). Airavatesvara Temple (by Rajaraja Chola II). Incorrect Solution: D Statement 1 is incorrect: The stupika (dome) is octagonal, not square-shaped. Statement 2 is incorrect: The temple has two large gopuras adorned with intricate sculptures. Statement 3 is incorrect: The inscriptions detail historical events, rituals, gifts, and construction overseen by Raja Raja Chola I. About Brihadeeswarar Temple (Rajarajeswaram) Location:Thanjavur, Tamil Nadu, part of the UNESCO “Great Living Chola Temples.” Era:Built in 1009 CE by Raja Raja Chola I, it is the largest and tallest Indian temple. Design: Features a massive 70-meter pyramidal vimana with an octagonal dome-shaped stupika. Two large gopuras adorned with intricate sculptures. Sanctum houses a two-storey lingam of Lord Shiva. Cultural Significance:Repository of Tamil inscriptions detailing rituals, gifts, and the temple’s construction overseen by Raja Raja Chola himself. Artistry:Painted murals, sculptural narratives, and stucco figures (added later during the Maratha period). Other Chola Temples: Gangaikonda Cholapuram (by Rajendra I). Airavatesvara Temple (by Rajaraja Chola II).
#### 5. Question
Consider the following statements regarding Brihadeeswarar Temple’s architectural features:
• The stupika on the vimana is square-shaped, reflecting early Chola design principles.
• The temple lacks any gopuras (gateway towers) in its complex.
• Its inscriptions primarily document myths and legends, with no references to historical events or rituals.
How many of the above statements are correct?
• (a) Only one
• (b) Only two
• (c) All three
Solution: D
Statement 1 is incorrect: The stupika (dome) is octagonal, not square-shaped.
Statement 2 is incorrect: The temple has two large gopuras adorned with intricate sculptures.
Statement 3 is incorrect: The inscriptions detail historical events, rituals, gifts, and construction overseen by Raja Raja Chola I.
About Brihadeeswarar Temple (Rajarajeswaram)
• Location:Thanjavur, Tamil Nadu, part of the UNESCO “Great Living Chola Temples.”
• Era:Built in 1009 CE by Raja Raja Chola I, it is the largest and tallest Indian temple.
• Features a massive 70-meter pyramidal vimana with an octagonal dome-shaped stupika.
• Two large gopuras adorned with intricate sculptures.
• Sanctum houses a two-storey lingam of Lord Shiva.
• Cultural Significance:Repository of Tamil inscriptions detailing rituals, gifts, and the temple’s construction overseen by Raja Raja Chola himself.
• Artistry:Painted murals, sculptural narratives, and stucco figures (added later during the Maratha period).
Other Chola Temples:
• Gangaikonda Cholapuram (by Rajendra I).
• Airavatesvara Temple (by Rajaraja Chola II).
Solution: D
Statement 1 is incorrect: The stupika (dome) is octagonal, not square-shaped.
Statement 2 is incorrect: The temple has two large gopuras adorned with intricate sculptures.
Statement 3 is incorrect: The inscriptions detail historical events, rituals, gifts, and construction overseen by Raja Raja Chola I.
About Brihadeeswarar Temple (Rajarajeswaram)
• Location:Thanjavur, Tamil Nadu, part of the UNESCO “Great Living Chola Temples.”
• Era:Built in 1009 CE by Raja Raja Chola I, it is the largest and tallest Indian temple.
• Features a massive 70-meter pyramidal vimana with an octagonal dome-shaped stupika.
• Two large gopuras adorned with intricate sculptures.
• Sanctum houses a two-storey lingam of Lord Shiva.
• Cultural Significance:Repository of Tamil inscriptions detailing rituals, gifts, and the temple’s construction overseen by Raja Raja Chola himself.
• Artistry:Painted murals, sculptural narratives, and stucco figures (added later during the Maratha period).
Other Chola Temples:
• Gangaikonda Cholapuram (by Rajendra I).
• Airavatesvara Temple (by Rajaraja Chola II).
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