Prelims MCQs Quiz 16 : Environment


1. With reference to ecosystems, consider the following statements:
1. Organisms at higher trophic level receive energy from more than one trophic level.
2. Higher trophic levels tend to be more discrete than the lower ones.
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

2. Which of the following are required for the formation of Ground-level ozone ( GLO) ?
1. Carbon dioxide
2. Volatile Organic Compounds
3. Sunlight
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

3. Which of the following is/are have been provided for in the Wildlife Protection Act, 1972?
1. National Parks
2. Wildlife Sanctuaries
3. Biosphere Reserves
Select the correct answer using the codes given below.
a) 1 only
b) 1 and 2 only
c) 1 and 3 only
d) 2 and 3 only

Answer & Explanation

4. The Montreal Protocol on Substances that Deplete the Ozone Layer aims to control the production and use of :
1. Dichloromethane
2. CFCs
3. HFCs
Select the correct answer using the codes given below.
a) 1 and 2 only
b) 2 only
c) 2 and 3 only
d) 1,2 and 3

Answer & Explanation

5. Endosulphan has been banned under the Stockholm Convention because:
a) it depletes ozone
b) it causes global warming
c) it is an endocrine disruptor
d) none of the above

Answer & Explanation

6. Which of the following Tiger reserves is/are also a National Park ?
1. Manas
2. Indravati
3. Namdapha
4. Sariska
Select the correct answer using the codes given below.
a) 1,2 and 3 only
b) 1,3 and 4 only
c) 2,3 and 4 only
d) 1,2,3 and 4

Answer & Explanation

7. Pollutants can be classified as primary and secondary. Which of these is/are primary pollutant?
1. Volatile Organic Compunds
2. Ground Level Ozone
3. Acid Rain
Select the correct answer using the codes given below.
a) 1 only
b) 1 and 2 only
c) 1 and 3 only
d) 1,2 and 3

Answer & Explanation

8. With reference to eutrophication, consider the following statements:
1. primary productivity becomes low
2. oxygen availability decreases
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. Which of the following is/are in-situ methods of conservation?
1. Biosphere Reserve
2. Botanical Garden
3. Zoological Park
Select the correct answer using the codes given below.
a) 1 only
b) 1 and 2 only
c) 1 and 3 only
d) None

Answer & Explanation

10. Consider the following scenario :
1. Trees at trophic level 1 as primary producers.
2. Parasites at trophic level 2 as primary consumers.
3. Hyperparasites at trophic level 3 as secondary consumers.
The resultant pyramid of numbers would be :
a) erect
b) inverted
c) neither erect nor inverted
d) can be erect or inverted depending on other factors.

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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