UPSC Environment PYQ — 70 Previous Year Questions

UPSC Environment PYQ 1 (2022)

Consider the following : 1. Carbon monoxide 2. Nitrogen oxide 3. Ozone 4. Sulphur dioxide Excess of which of the above in the environment is/are cause(s) of acid rain ?

1. 1, 2 and 3
2. 2 and 4 only
3. 4 only
4. 1, 3 and 4

Answer: B. 2 and 4 only

UPSC Environment PYQ 2 (2025)

I. It is an omnivorous crustacean. II. Its natural habitat in India is only limited to some forest areas. III. In its natural habitat, it is an arboreal species.

Regarding Peacock tarantula (Gooty tarantula), consider the following statements : How many of the statements given above are correct?

1. I only
2. I and II
3. II only
4. II and III

Answer: D. II and III

UPSC Environment PYQ 3 (2018)

1. GACSA is an outcome of the Climate Summit held in Paris in 2015. 2. Membership of GACSA does not create any binding obligations. 3. India was instrumental in the creation of GACSA.

With reference to the ‘Global Alliance for Climate-Smart Agriculture (GACSA)’, which of the following statements is/are correct ?

1. 1 and 3 only
2. 2 only
3. 2 and 3 only
4. 1, 2 and 3

Answer: B. 2 only