1. Dichloro-Diphenyl-trichloroethane (DDT) is a (UPPSC 2022)
a) Biochemical Pollutant
b) Non-biodegradable pollutant
c) Biodegradable pollutant
d) Non-pollutant
Answer. b) Non-biodegradable pollutant
2. Which one of the following is NOT an example of a biomass energy source? (UPPSC 2022)
a) Wood
b) Nuclear energy
c) Gobar (Dung)
d) Coal
Answer. b) Nuclear energy is
3. Sound what above level ( in decibels) is considered hazardous noise pollution? (UPPSC 2013)
a) 30 dB
b) 40 dB
c) 60 dB
d) 80 dB
Answer. d) 80 dB
4. Which one of the following substances does not contribute to global warming? (UPPSC 2013)
a) Oxides of Sulphur and Nitrogen
b) Methane
c) Carbon Dioxide
d) Water Vapour
Answer. a) Oxides of Sulphur and Nitrogen
5. Which one of the following air pollutants can affect the bloodstream leading to death. (UPPSC 2013)
a) Asbestos dust
b) Cadmium
c) Lead
d) Carbon Monoxide
Answer. d) Carbon Monoxide
6. Which one of the following is a bio-indicator of air pollution? (UPPSC 2013)
a) Fern
b) Lichen
c) Money Plant
d) Dodder
Answer. b) Lichen ;
Lichen is sensitive to sulfur dioxide. Lichen takes most of the nutrients from the air instead of from the soil, the accumulation of different pollutants in the lichen indicates the level of pollution in the air.
7. Acid rain is due to air pollution by (UPPSC 2013)
a) Carbon dioxide
b) Carbon monoxide
c) Methane
d) Nitrous oxide and Sulfur dioxide
Answer. d) Nitrous oxide and Sulfur dioxide
8. Which one of the following gases is not a greenhouse gas? (UPPSC 2016)
a) CO2
b) CH4
c) NO2
d) O2
Answer. d) O2
9. Which of the following air pollutants gets dissolved in the hemoglobin of the blood more rapidly than oxygen? (UPPSC 2016)
a) PAN
b) Carbon dioxide
c) Carbon monoxide
d) Ozone
Answer. c) Carbon monoxide
10. Which of the following is/are used as a disinfectant of water? (UPPSC 2016)
a) Ozone
b) Chlorine dioxide
c) Chloramine
d) All of the above
Answer. d) All of the above
11. Which of the following countries was the largest emitter of CO2 in 2015? (UPPSC 2018)
a) China
b) the U.S.A.
c) India
d) France
Answer. a) China ; China: 28 %; U.S.A. 14.5 %, India: 7 %, Russia, 4.6 %
12. A powerful eye irritant in the smoke is ( UPPSC 2018)
a) Ozone
b) Sulphur dioxide
c) Carbon dioxide
d) Peroxyacetyle nitrate
Answer. d) Peroxyacetyle nitrate; Peroxyacetyle nitrate is a secondary pollutant present in smoke and produce during photochemical reactions.
13. Methane is emitted from which of the following? (UPPSC 2018)
a) Paddy fields only
b) Termitary only
c) Both from (a) and (b)
d) None of the above
Answer. c) Both from (a) and (b)
14. Which of the following energy sources produces "no" atmospheric pollution? (UPPSC 2018)
a) Nuclear energy
b) Solar energy
c) Petroleum energy
d) Coal energy
Answer. b) Solar energy
15. Which of the following is the secondary pollutant? (UPPSC 2018)
a) Smog
b) Carbon dioxide
c) Carbon mono-oxide
d) Fly ash
Answer. a) Smog
16. The gas, which is emitted in the paddy fields and increases the earth's temperature is: (UPPSC 2019)
a) Nitrogen
b) Carbon dioxide
c) Carbon monoxide
d) Methane
Answer. d) Methane
17. Which of the following is NOT correctly matched? (UPPSC 2019)
a) Cartagena Protocol Biosafety
b) Stockholm Convention Persistent Organic pollution
c) Montreal Protocol Ozone layer
d) Kyoto Protocol Save water
Answer. d) Kyoto Protocol Save water
18. Smog is essentially caused by the atmospheric presence of: (UPPSC 2019)
a) Oxygen and ozone
b) Ozone and nitrogen
c) Oxygen and nitrogen
d) Oxide of nitrogen and sulfur
Answer. d) Oxide of nitrogen and sulfur
19. Which one of the following is NOT a greenhouse gas found naturally in the atmosphere? (UPPSC 2020)
a) Nitrogen oxide
b) Carbon dioxide
c) Methane
d) Ozone
Answer. a) Nitrogen oxide
20. Fly ash pollution is caused by (UPPSC 2021)
a) Oil refining
b) Fertilizer industry
c) Thermal Power Plants
d) Mining
Answer. c) Thermal Power Plants
21. Electrostatic precipitator is used for ------
a) Removing water pollutants
b) Removing soil pollutants
c) Removing particulate matter
d) All of the above
Answer. c) Removing particulate matter; Electrostatic precipitator is used by the thermal power plant to remove particulate matter in the exhaust.
22. ------------- are a major cause of atmospheric pollution in metro cities.
a) Thermal power plant
b) Automobile
c) Stubble burning
d) Industries
Answer. b) Automobile
23. Environment (Protection) Act came in -----------
a) 1972
b) 1981
c) 1986
d) 2002
Answer. c) 1986
24. Air (Prevention and Control of Pollution) Act came into force in -----------
a) 1974
b) 1981
c) 1986
d) 2002
Answer. b) 1981
25. Water (Prevention and Control of Pollution) Act came into force in -----------
a) 1974
b) 1981
c) 1986
d) 2002
Answer. a) 1974
26. Arrange the following in chronological order;
1. Water (Prevention and Control of Pollution) Act
2. Air (Prevention and Control of Pollution) Act
3. Environment (Protection) Act
4. Wildlife Protection Act
a) 1,2,3,4
b) 2,1,3,4
c) 4,1,2,3
d) 3,4,1,2
Answer. c) 4,1,2,3 ;
1. Water (Prevention and Control of Pollution) Act-1974
2. Air (Prevention and Control of Pollution) Act-1981
3. Environment (Protection) Act-1986
4. Wildlife Protection Act -1972
27. Presence of large amounts of nutrients in waters also causes excessive growth of planktonic (free-floating) algae, called
a) Water pollution
b) Sewage
c) Algae bloom
d) Biochemical Oxygen Demand (BOD)
Answer. c) Algae bloom
28. Which of the following is a waterborne disease?
a) dysentery
b) typhoid
c) jaundice and cholera
d) All of the above
Answer. d) All of the above
29. Consider the following pollutants-
1. Carbon dioxide
2. Methane
3. CFCs
4. N2O
Arrange the above pollutant in increasing order of relative contribution of various greenhouse gases to total global warming.
a) 1,2,3,4
b) 1,2,4,3
c) 2,1,3,4
d) 2,1,4,3
Answer. a) 1,2,3,4;
1. Carbon dioxide-60 %
2. Methane-20%
3. CFCs-14 %
4. N2O-6%
30. The thickness of the ozone is measured in terms of --------;
a) decibel (dB)
b) Dobson units (DU)
c) Pascal
d) All of the above
Answer. b) Dobson units (DU)
31. Montreal Protocol, was signed in Montreal (Canada) in 1987 (effective in 1989) to control the emission of ------
a) Green House gases
b) Mercury substances
c) Ozone-depleting substances
d) Hazardous pollutant
Answer. c) ozone-depleting substances
32. Catalytic converter is related to----
a) Particulate matter
b) Carbon monoxide and nitrogen oxides
c) High noise level
d) Solid wastes
Answer. b) Carbon monoxide and nitrogen oxides
33. Electrostatic precipitator is related to----
a) Particulate matter
b) Carbon monoxide and nitrogen oxides
c) High noise level
d) Solid wastes
Answer. a) Particulate matter
34. Earmuffs is related to----
a) Particulate matter
b) Carbon monoxide and nitrogen oxides
c) High noise level
d) Solid wastes
Answer. c) High noise level
35. Landfills are related to----
a) Particulate matter
b) Carbon monoxide and nitrogen oxides
c) High noise level
d) Solid wastes
Answer. d) Solid wastes
36. Which of the following is not a greenhouse gas?
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