Prelims MCQs Quiz 35 : Environment


1. Which of the following World Heritage Sites is/are also a tiger reserve?

1. Sundarbans
2. Nanda Devi
3. Manas
4. Kaziranga
Select the correct answer using the codes given below.
a) 1 and 2 only
b) 1 and 3 only
c) 1 and 4 only
d) 1, 3 and 4 only

Answer & Explanation

2. With reference to ground level ozone (GLO), consider the following statements:
1. GLO reach unhealthy levels on cold days.
2. They can be transported long distances by wind.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

Answer & Explanation

3. Consider the following statements:
1. IUCN classify protected areas according to their management objectives.
2. National parks of India are in the category IUCN 1.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

Answer & Explanation

4. Soil acidification can occur due to
1. heavy rainfall
2. application of fertilizer
3. shifting cultivation
Select the correct answer using the codes given below.
a) 1 and 2 only
b) 1 and 3 only
c) 2 and 3 only
d) 1, 2 and 3

Answer & Explanation

5. Ecosystem provides various services. Which of the following is/are supporting services?
1. nutrient recycling
2. medicinal resources
3. carbon sequestration
Select the correct answer using the codes given below.
a) 1 only
b) 1 and 2 only
c) 2 and 3 only
d) 1 and 3 only
a) 1 only.

Answer & Explanation

6. In context of ecology, the term ‘carrying capacity’ of a species means
a) the highest amount of stress it can withstand.
b) Resources that it consumes.
c) Its population size that the environment can sustain indefinitely
d) none

Answer & Explanation

7. Who among the following can alter the boundaries of a national park?

1. Parliament
2. State legislature
3. Ministry of environment and forest.
Select the correct answer using the codes given below.
a) 1 and 2 only
b) 1 and 3 only
c) 2 only
d) 2 and 3 only

Answer & Explanation

8. Consider the following statements about ecosystem stability:
1. It increases with increase of number of links in the food web.
2. It increases with the increase in length of food chain.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

Answer & Explanation

9. Earthworms help in improving the soil health by

1. stimulating microbial activity
2. mixing up the soil
3. decreasing infiltration
Select the correct answer using the codes given below.
a) 1 and 2 only
b) 1 and 3 only
c) 2 and 3 only
d) 1, 2 and 3

Answer & Explanation

10. Consider the following statements
1. As a greenhouse gas (GHG) methane is even more harmful than carbon dioxide
2. Methane has been included in the list of six GHGs in Kyoto Protocol.
Which of the statements given above is/are correct ?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

Answer & Explanation

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Please read these important articles about prelims preparation

1. How UPSC asks current affairs in GS Prelims

2. How to practice prelims MCQs for UPSC

3. Applying logic in UPSC General Studies Prelims
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