Skip to content
Home » Environment & Pollution Control MCQ Questions

Environment & Pollution Control MCQ Questions

Environment & pollution control MCQ questions can help students evaluate their knowledge of cause of earth pollution. Answers are also given for environmental pollution MCQs to help you remember. Try our environmental pollution MCQs to see if you can get all the answers right for the questions below.

Environment & Pollution Control MCQ Questions

Environmental Pollution is defined as the introduction of substances (or energy) that causes negative changes in the environment and living organisms. Try our MCQs to learn reasons for environmental pollution and control measures.

Environmental Pollution MCQs

1. The sun’s ultraviolet radiation cause the production of

  1. Carbon monoxide
  2. Sulphur Dioxide
  3. Ozone
  4. Fluorides

2. Which of the following will not pollute the atmosphere?

  1. Hydrogen
  2. Sulphur Dioxide
  3. Carbon dioxide
  4. Carbon monoxide

3. Using the action of, sewage water can be cleansed and recycled.

  1. Aquatic plants
  2. Penicillin
  3. Microorganisms
  4. Fishes

4. Because of this, the concentration of greenhouse gases is high today.

  1.  Use of refrigerator
  2. Increased combustion of oil and coal
  3. Deforestation
  4. All of the above

5. Photochemical smog is linked to air pollution.

  1. Soil
  2. Water
  3. Noise
  4. Air

6. Perhaps the most significant soil pollutant is

  1. Plastics
  2. Iron junks
  3. Detergents
  4. Glass junks

7. When a large amount of sewage is dumped into a river, the BOD level rises.

  1. Increase
  2. Remain unchanged
  3. Slightly decrease
  4. Decrease

8. Which is a fungicide?

  1. 2, 4-D
  2. DDT
  3. Bordeaux mixture
  4. BHC

9. Rotenone is

  1. A bio herbicide
  2. An insect hormone
  3. A natural herbicide
  4. A natural insecticide

10. Which of the following is not produced as exhaust of vehicles?

  1. Sulphur dioxide
  2. Carbon dioxide
  3. Carbon monoxide
  4. Fly ash

11. Smog is

  1. Smoke
  2. Other name for dust storm
  3. Moistened air gases
  4. Smoke and fog

12. The most dangerous metal pollutant of automobile exhaust is

  1. Cadmium
  2. Silver
  3. Lead
  4. Manganese

13. Which one of the following is a greenhouse gas?

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

14. Smog produces

  1. O3
  2. NO2
  3. CH4
  4. Aluminium Ion

15. Depletion of ozone layer is due to oxide of

  1. Carbon
  2. Phosphorus
  3. Nitrogen
  4. None

16. Formation of ozone is maximum over

  1. Antarctica
  2. Africa
  3. Europe
  4. India

17. Oxidation Ponds involve

  1. Chemical removal of pollutants
  2. Mechanical screening of pollutants
  3. Biological reduction of organic matter
  4. None of the above

18. Natural sink of stratospheric ozone layer is

  1. SO2
  2. HCF
  3. Freons
  4. Sulphur flux of oceans

19. Water pollution is mainly caused by

  1. Decay of bodies of aquatic animals
  2. Industrial effluents
  3. Excessive rain
  4. Growth of phytoplankton

20. Which of the following is usually not classified as atmospheric pollutant?

  1. CO2
  2. CO
  3. NOx
  4. SO2

21. The sound above what level is considered as harmful?

  1. Above 40 db
  2. Above 60 db
  3. Above 80 db
  4. Above 120 db

22. Which of the following is a secondary air pollutant?

  1. SO2
  2. NO2
  3. PAN
  4. Aerosol

23. Peeling of ozone umbrella, which protects us from UV rays, is caused by

  1. CFC’s
  2. Coal burning
  3. CO2
  4. PAN

24. Greenhouse effect is caused by

  1. CO2 only
  2. CH4, SO2, NO2
  3. Those gases which absorb the infra-red light reflecting from earth
  4. None of the above

25. The result of ozone hole is

  1. Acid rain
  2. Global warming
  3. The UV radiations reach the earth
  4. Greenhouse effect

Answer Key

  1. Ozone
  2. Hydrogen
  3. Microorganisms
  4. All of the above
  5. Air
  6. Plastics
  7. Slightly decrease
  8. Bordeaux mixture
  9. An insect hormone
  10. Carbon monoxide
  11. Moistened air gases
  12. Lead
  13. Carbon dioxide
  14.  Aluminium Ion
  15. Nitrogen
  16. Europe
  17. Biological reduction of organic matter
  18. HCF
  19. Growth of phytoplankton
  20. Nox
  21. Above 80 db
  22. PAN
  23. CFC’s
  24. Those gases which absorb the infra-red light reflecting from earth
  25.  Global warming

We hope environmental pollution MCQs post helped you to understand about environmental pollution. Share our environmental pollution MCQs!

Further Readings

Reference