Static Quiz 26 December 2024 (Environment)
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Static Quiz 26 December 2024 (Environment) For UPSC Exam
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- Question 1 of 5
1. Question
Consider the following statements about ecotones:
1. An ecotone is a transitional area between two biological communities where species from both ecosystems can coexist.
2. Ecotones typically have lower biodiversity than the adjoining ecosystems due to competition between species.
3. Edge effect is a phenomenon commonly associated with ecotones, where species diversity and population density are often higher than in either adjoining ecosystem.
Which of the statements is/are correct?CorrectAnswer:
(b) 1 and 3 only
Explanation:
• Statement 1 is correct: Ecotones are transitional zones where species from adjacent ecosystems coexist and sometimes interact.
• Statement 2 is incorrect: Ecotones generally have higher biodiversity due to the mixing of species from both ecosystems, as well as the presence of edge species that thrive in transitional environments.
• Statement 3 is correct: The edge effect refers to the increased biodiversity and activity observed in ecotones compared to the ecosystems they separate.IncorrectAnswer:
(b) 1 and 3 only
Explanation:
• Statement 1 is correct: Ecotones are transitional zones where species from adjacent ecosystems coexist and sometimes interact.
• Statement 2 is incorrect: Ecotones generally have higher biodiversity due to the mixing of species from both ecosystems, as well as the presence of edge species that thrive in transitional environments.
• Statement 3 is correct: The edge effect refers to the increased biodiversity and activity observed in ecotones compared to the ecosystems they separate. - Question 2 of 5
2. Question
Consider the following statements about millets:
1. India is the second-largest producer of millets in the world.
2. The United Nations General Assembly declared 2023 the International Year of Millets (IYM 2023).
3. Millets require high input costs and consume more water compared to staple crops like rice and wheat.
Which of the statements given above is/are Incorrect?CorrectAnswer:
(c) 1 and 3 only
Explanation:
• Statement 1 is incorrect: India is the largest producer of millets globally, after Africa. It plays a significant role in promoting millet production.
• Statement 2 is correct: The United Nations General Assembly declared 2023 as the International Year of Millets to promote awareness about their health benefits and sustainable farming practices.
• Statement 3 is incorrect: Millets are known for their low input requirements and resilience to drought conditions. They consume less water and require fewer inputs like fertilizers and pesticides compared to water-intensive crops like rice and wheat.IncorrectAnswer:
(c) 1 and 3 only
Explanation:
• Statement 1 is incorrect: India is the largest producer of millets globally, after Africa. It plays a significant role in promoting millet production.
• Statement 2 is correct: The United Nations General Assembly declared 2023 as the International Year of Millets to promote awareness about their health benefits and sustainable farming practices.
• Statement 3 is incorrect: Millets are known for their low input requirements and resilience to drought conditions. They consume less water and require fewer inputs like fertilizers and pesticides compared to water-intensive crops like rice and wheat. - Question 3 of 5
3. Question
Which of the following species is classified as “Vulnerable” under the IUCN Red List?
1. Ganges River Dolphin
2. Snow Leopard
3. Indian Star Tortoise
4. Great Indian Bustard
Select the correct answer using the code given below:CorrectAnswer:
(b) 2 and 3 only
Explanation:
• Ganges River Dolphin: Classified as “Endangered” under the IUCN Red List.
• Snow Leopard: Classified as “Vulnerable” due to habitat loss, poaching, and decreasing prey populations.
• Indian Star Tortoise: Classified as “Vulnerable” because of illegal pet trade and habitat destruction.
• Great Indian Bustard: Classified as “Critically Endangered” due to habitat loss and hunting.IncorrectAnswer:
(b) 2 and 3 only
Explanation:
• Ganges River Dolphin: Classified as “Endangered” under the IUCN Red List.
• Snow Leopard: Classified as “Vulnerable” due to habitat loss, poaching, and decreasing prey populations.
• Indian Star Tortoise: Classified as “Vulnerable” because of illegal pet trade and habitat destruction.
• Great Indian Bustard: Classified as “Critically Endangered” due to habitat loss and hunting. - Question 4 of 5
4. Question
Which of the following is not a bird?
CorrectAnswer : (a) Golden Mahseer
Explanation :
The Golden Mahseer is a freshwater fish found in rivers and lakes across the Indian subcontinent. It is a well-known species for angling and is prized for its size and strength.
The other options—Indian Nightjar, Spoonbill, and White Ibis—are all bird species:
1. Indian Nightjar: A nocturnal bird known for its camouflaged plumage and unique calls.
2. Spoonbill: A wading bird with a distinctive spoon-shaped bill, commonly found in wetlands.
3. White Ibis: A long-legged bird with a curved beak, often seen in marshes and near water bodies.IncorrectAnswer : (a) Golden Mahseer
Explanation :
The Golden Mahseer is a freshwater fish found in rivers and lakes across the Indian subcontinent. It is a well-known species for angling and is prized for its size and strength.
The other options—Indian Nightjar, Spoonbill, and White Ibis—are all bird species:
1. Indian Nightjar: A nocturnal bird known for its camouflaged plumage and unique calls.
2. Spoonbill: A wading bird with a distinctive spoon-shaped bill, commonly found in wetlands.
3. White Ibis: A long-legged bird with a curved beak, often seen in marshes and near water bodies. - Question 5 of 5
5. Question
Consider the following kinds of organisms:
1. Copepods
2. Cyanobacteria
3. Diatoms
4. Foraminifera
Which of the above are primary producers in the food chains of oceans?CorrectAnswer: (b) 2 and 3 only
Explanation:
• Cyanobacteria: These are photosynthetic microorganisms (often called blue-green algae) that produce energy through photosynthesis. They are primary producers in marine and freshwater ecosystems.
• Diatoms: These are unicellular algae that are among the most important primary producers in the oceans. They perform photosynthesis and contribute significantly to the marine food web and oxygen production.
• Copepods: These are small crustaceans and consumers (not primary producers). They feed on phytoplankton (like diatoms) and are an essential part of the marine food web as primary or secondary consumers.
• Foraminifera: These are single-celled protists that primarily consume organic material or algae, making them consumers rather than primary producers.IncorrectAnswer: (b) 2 and 3 only
Explanation:
• Cyanobacteria: These are photosynthetic microorganisms (often called blue-green algae) that produce energy through photosynthesis. They are primary producers in marine and freshwater ecosystems.
• Diatoms: These are unicellular algae that are among the most important primary producers in the oceans. They perform photosynthesis and contribute significantly to the marine food web and oxygen production.
• Copepods: These are small crustaceans and consumers (not primary producers). They feed on phytoplankton (like diatoms) and are an essential part of the marine food web as primary or secondary consumers.
• Foraminifera: These are single-celled protists that primarily consume organic material or algae, making them consumers rather than primary producers.
