Pollution UPSC Questions

General Issues on Environmental Ecology, Bio-diversity & Climate Change

Pollution MCQ Questions


13.
Consider the following statements:
1. Agricultural soils release nitrogen oxides into the environment.
2. Cattle release ammonia into the environment.
3. Poultry industry releases reactive nitrogen compounds into the environment.
Which of the statements given above is/are correct?
UPSC - 2019
A.
1 and 3 only
B.
2 and 3 only
C.
2 only
D.
1, 2 and 3
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ANSWER :
D. 1, 2 and 3
14.
Consider the following:
1. Carbon monoxide
2. Methane
3. Ozone
4. Sulphur dioxide
Which of the above are released into the atmosphere due to the burning of crop/biomass residue?
UPSC - 2019
A.
1 and 2 only
B.
2, 3 and 4 only
C.
1 and 4 only
D.
1, 2, 3 and 4
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ANSWER :
D. 1, 2, 3 and 4
15.
In India, the use of carbofuran, methyl parathion, phorate and triazophos is viewed with apprehension. These chemicals are used as
UPSC - 2019
A.
pesticides in agriculture
B.
preservatives in processed foods
C.
fruit-ripening agents
D.
moisturising agents in cosmetics
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ANSWER :
A. pesticides in agriculture
16.
Why is there a great concern about the 'microbeads' that are released into environment?
UPSC - 2019
A.
They are considered harmful to marine ecosystems.
B.
They are considered to cause skin cancer in children.
C.
They are small enough to be absorbed by crop plants in irrigated fields.
D.
They are often found to be used as food adulterants.
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ANSWER :
A. They are considered harmful to marine ecosystems.
17.
Bisphenol A (BPA), a cause of concern, is a structural/key component in the manufacture of which of the following kinds of plastics?
UPSC - 2021
A.
Low-density polyethylene
B.
Polycarbonate
C.
Polyethylene terephthalate
D.
Polyvinyl chloride
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ANSWER :
B. Polycarbonate
18.
‘Triclosan’, considered harmful when exposed to high levels for a long time, is most likely present in which of the following?
UPSC - 2021
A.
Food preservatives
B.
Fruit-ripening substances
C.
Reused plastic containers
D.
Toiletries
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ANSWER :
D. Toiletries