Air Pollution MCQ Questions and Answers for Practice

1. Air pollution causes

1. Global warming
2. Respiratory problems
3. Soil erosion
4. None of these

2. All are particulate pollutants except

1. smoke
2. dust
3. ozone
4. soot

3. CNG is a

1. Polluted fuel
2. Clean fuel
3. Harmful fuel
4. None

4. Fine organic or inorganic particles suspended in air is called

1. particulate pollutant
2. gaseous pollutant
3. aerosol
4. none of these

5. Green House gas is

1. Nitrogen
2. Oxygen
3. Methane
4. Carbon dioxide

6. Highest percentage of air consists of

1. Oxygen
2. Carbon dioxide
3. Nitrogen
4. Argon

7. If released or formed in the atmosphere, which of the following will least likely result in long-term environmental damage to an ecosystem?

1. Mercury
2. Carbon monoxide
3. Lead
4. Ozone

8. Incomplete combustion of fuel such as petrol and diesel gives

1. nitrogen oxide
2. sulphur dioxide
3. carbon monoxide
4. carbon dioxide

9. Ozone in Stratosphere absorbs harmful

1. Dust particles
2. Radiations
3. Fumes
4. Air Pollutants

10. The major contributor of Carbon monoxide is

1. Motor vehicle
2. Industrial processes
3. Stationary fuel combustion
4. None of the above

11. The percentage of nitrogen is

1. 21%
2. 78%
3. 12%
4. 87%

12. The Taj Mahal is being affected by

1. Noise pollution
2. Air pollution
3. Water pollution
4. None of these

13. What causes pollution

1. Human activities
2. Trees
3. Both of these
4. None of these

14. Which is the major source for sulphur dioxide?

1. Volcanic eruptions
2. Coal and crude oil combustion
3. Burning of petrol
4. Sewage treatment process

15. Which of the following gases has the highest affinity for blood haemoglobin?

1. Carbon dioxide
2. Oxygen
3. Carbon monoxide
4. Nitrogen