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Environment 2021

Environment 2021 PYQ

1. Consider the following statements:

  1. Statement 1: The United Nations Capital Development Fund (UNCDF) and the Arbor Day Foundation have recently recognized Hyderabad as 2020 Tree City of the World.
  2. Statement 2: Hyderabad was selected for the recognition for a year following its commitment to grow and maintain the urban forests.

Which one of the following is correct in respect of the above statements?
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

2. In the context of India’s preparation for Climate-Smart Agriculture, consider the following statements:

  1. The ‘Climate-Smart Village’ approach in India is a part of a project led by the Climate Change, Agriculture and Food Security (CCAFS), an international research programme.
  2. The project of CCAFS is carried out under Consultative Group on International Agricultural Research (CGIAR) headquartered in France.
  3. The International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) in India is one of the CGIAR’s research centres.

Which of the statements given above are correct?
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

3. 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?
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

4. Consider the following animals:

  1. Hedgehog
  2. Marmot
  3. Pangolin

To reduce the chance of being captured by predators, which of the above organisms rolls up/roll up and protects/protect its/their vulnerable parts?
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

5. With reference to the ‘New York, Declaration on Forests’, which of the following statements are correct?

  1. It was first endorsed at the United Nations Climate Summit in 2014.
  2. It endorses a global timeline to end the loss of forests.
  3. It is a legally binding international declaration.
  4. It is endorsed by governments, big companies and indigenous communities.
  5. India was one of the signatories at its inception.

Select the correct answer using the code given below.
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

6. Magnetite particles, suspected to cause neurodegenerative problems, are generated as environmental pollutants from which of the following?

  1. Brakes of motor vehicles
  2. Engines of motor vehicles
  3. Microwave stoves within homes
  4. Power plants
  5. Telephone line

Select the correct answer using the code given below.
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

7. Which one of the following is a filter feeder?[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

8. In case of which one of the following biogeochemical cycles, the weathering of rocks is the main source of release of nutrient to enter the cycle?

 
 
 
 

9. Which of the following are detritivores?

  1. Earthworms
  2. Jellyfish
  3. Millipedes
  4. Seahorses
  5. Woodlice

Select the correct answer using the code given below.
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

10. The ‘Common Carbon Metric’, supported by UNEP, had been developed for
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

11. Which of the following have species that can establish symbiotic relationship with other organisms?

  1. Cnidarians
  2. Fungi
  3. Protozoa

Select the correct answer using the code given below.
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

12. ‘R2 Code of Practices’ constitutes a tool available for promoting the adoption of
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

13. Why is there a concern about copper smelting plants?

  1. They may release lethal quantities of carbon monoxide into environment.
  2. The copper slag can cause the leaching of some heavy metals into environment.
  3. They may release sulphur dioxide as a pollutant.

Select the correct answer using the code given below.
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

14. With reference to furnace oil, consider the following statements:

  1. It is a product of oil refineries.
  2. Some industries use it to generate power.
  3. Its use causes sulphur emissions into environment.

Which of the statements given above are correct?
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

15. What is blue carbon?
[UPSC Civil Services Exam – 2021 Prelims]

 
 
 
 

16. In the nature, which of the following is/are most likely to be found surviving on a surface without soil?

  1. Fern
  2. Lichen
  3. Moss
  4. Mushroom

Select the correct answer using the code given below.[UPSC Civil Services Exam – 2021 Prelims]