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► Air Pollution ► MCQ with Answers ► Water Pollution ► Multiple Choice

1. Air pollution is severe in

a) Cities

b) Industrialised areas

c) Densely populated areas

d) all of these

2. Particulate pollutants

are

a) are small solid particles

and liquid droplets

b) liquid droplets in

atmosphere

c) are small solid particles released into the atmosphere

d) all of these

3. All are particulate pollutants except

Multiple Choice Questions on Air pollution

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8/5/2014 Multiple Choice Questions on Air pollution ~ MCQ Biology - Learning Biology through MCQs

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a) dust

b) ozone

c) soot

d) smoke

4. Fine organic or inorganic particles suspended in air is

called

a) particulate pollutant

b) gaseous pollutant

c) aerosol

d) none of these

5. Which of the following is a secondary pollutant

a) CO2

b) CO

c) O3

d) SO2

6. Air pollution can be of

a) natural origin

b) artificial or man made origin

c) both a and b

d) b only

7. Mobile combustion accounts

a) 10-20% of air pollution

b) 40-50% of air pollution

c) 50-60 % of air pollution

d) 5-10 % of air pollution

8. The true statement about ‘green house effect’ is that it is

a) caused by combination of many gases

b) caused by CO2

c) caused only by CO2, CFC, CH4 and NO2 gases

d) None of these

9. The supersonic jets cause pollution by the thinning of

a) CO2 layer

b) SO2 layer

c) O3 layer

d) O2 layer

10. Carbon mono oxide is a pollutant because

a) it reacts with O2

b) it inhibits glycolysis

c) makes nervous system inactive

d) reacts with haemoglobin

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8/5/2014 Multiple Choice Questions on Air pollution ~ MCQ Biology - Learning Biology through MCQs

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13

Answers

1. d) all of these

2. a) are small solid particles and liquid droplets

3. b) ozone

4. c) aerosol

5. c) O3

6. c) both a and b

7. c) 50-60 % of air pollution

8. c) caused only by CO2, CFC, CH4 and NO2 gases

9. c) O3 layer

10. d) reacts with haemoglobin

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