Pollution UPSC Questions

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

Pollution MCQ Questions


1.
Recently "oilzapper" was in the news. What is it ?
UPSC - 2011
A.
It is an eco -friendly technology for the remediation of oily sludge and oil spills
B.
It is the latest technology developed for under-sea oil exploration
C.
It is a genetically engineered high biofuel -yelding maize variety
D.
It is the latest technology to control the accidentally caused flames from oil wells
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ANSWER :
A. It is an eco -friendly technology for the remediation of oily sludge and oil spills
2.
Lead ingested or inhaled, is a health hazard After the addition of lead to petrol has been banned, what still are the sources of lead poisoning?
1. Smelling units
2. Pens and pencils
3. paints
4. Hair oils and cosmetics
Select the correct answer using the codes given below:
UPSC - 2012
A.
1, 2 and 3 only
B.
1 and 3 only
C.
2 and 4 only
D.
1, 2, 3 and 4
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ANSWER :
B. 1 and 3 only
3.
What is the role of ultraviolet (UV) radiation in the water purification systems?
1. It inactivates / kills the harmful micro organisms in water.
2. It removes all the undesirable odours from the water.
3. It quickens the sedimentation of solid particles, removes turbidity and improves the clarity of water.
Which of the statements given above is / are correct?
UPSC - 2012
A.
1 only
B.
2 and 3 only
C.
1 and 3 only
D.
1, 2 and 3
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ANSWER :
A. 1 only
4.
Photochemical smog is a resultant of the reaction among
UPSC - 2013
A.
NO2, O3 and peroxyacetyl nitrate in the presence of sunlight
B.
CO, O2 and peroxyacetyl nitrate in the presence of sunlight
C.
CO, CO2, and NO2 at low temperature
D.
high concentration of NO2, O3 and CO in the evening
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ANSWER :
A. NO2, O3 and peroxyacetyl nitrate in the presence of sunlight
5.
Due to improper/indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste?
1. Beryllium
2. Cadmium
3. Chromium
4. Heptachlor
5. Mercury
6. Lead
7. Plutonium
Select the correct answer using the codes given below:
UPSC - 2013
A.
1, 3, 4, 6 and 7 only
B.
1, 2, 3, 5 and 6 only
C.
2, 4, 5 and 7 only
D.
1, 2, 3, 4, 5, 6 and 7
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ANSWER :
B. 1, 2, 3, 5 and 6 only
6.
Acid rain is caused by the pollution of environment by
UPSC - 2013
A.
carbon dioxide and nitrogen
B.
carbon monoxide and carbon dioxide
C.
ozone and carbon dioxide
D.
nitrous oxide and sulphur dioxide
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ANSWER :
D. nitrous oxide and sulphur dioxide