WBBSE Class 6 Geography Chapter 8 Air Pollution MCQs

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WBBSE Class 6 Geography Chapter 8 Air Pollution Multiple Choice Question And Answers

Question 1. Which of the following in the atmosphere protects life on Earth from the harmful ultraviolet rays of the sun?

  1. O2
  2. O3
  3. H2O

Answer: 2. O2

Question 2. Refrigerators, air conditioners and aerosol sprays release –

  1. O2
  2. CFC
  3. SO2

Answer: 2. CFC

Question 3. The thinning of the ozone layer will allow which rays to reach the earth?

  1. Ultraviolet rays
  2. X rays
  3. Infrared rays

Answer: 1. Ultraviolet rays

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Question 4. Which gas emitted from supersonic jets causes harm to the ozone layer?

  1. Nitrogen oxide
  2. Hydrogen
  3. Carbon dioxide

Answer: 1. Nitrogen oxide

WBBSE Class 6 Geography Question Answer

WBBSE Class 6 Geography Chapter 8 Air Pollution MCQs

Question 5. Skin cancer is caused by—

  1. Noise pollution
  2. Air pollution
  3. Soil pollution

Answer: 2. Air pollution

Question 6. Monuments made of marble such as taj mahal and victoria memorial are getting damaged due to—

  1. Acid rain
  2. Depletion of the ozone layer
  3. Global warming

Answer: 1. Acid rain

Question 7. Acid rain is more common in—

  1. Industrial areas
  2. Forests
  3. Farmlands

Answer: 1. Industrial areas

Question 8. Which of the following gets mixed with water during acid rain?

  1. Sulphur dioxide
  2. Calcium carbonate
  3. Chlorofluorocarbon

Answer: 1. Sulphur dioxide

Question 9. The glass structures used to cultivate vegetables and other plants in cold countries are known as—

  1. Winter houses
  2. Greenhouses
  3. Glasshouses

Answer: 2. Greenhouses

Question 10. Which of the following is a greenhouse gas?

  1. Methane
  2. Oxygen
  3. Hydrogen

Answer: 1. Methane

WBBSE Class 6 Geography Question Answer

Question 11. Which of the following gases is responsible for global warming?

  1. Oxygen
  2. Nitrogen
  3. Carbon dioxide

Answer: 3. Carbon dioxide

Question 12. Which of the following is a form of public transport?

  1. Bicycle
  2. Rickshaw
  3. Train

Answer: 3. Train

Question 13. Which of the following modes of transport does not cause air pollution?

  1. Bus
  2. Diesel train
  3. Electric train

Answer: 3. Electric train

Question 14. The use of alternative energy will help to—

  1. Lower the level of air pollution
  2. Raise the level of air pollution
  3. Maintain the level of air pollution

Answer: 1. Maintain the level of air pollution

Question 15. The source of alternative energy is—

  1. Hydroelectricity
  2. Heat electricity
  3. Solar power

Answer: 3. Solar power

Question 16. The intensity of air pollution is maximum—

  1. In dense forests
  2. In mountain peaks
  3. Near the ground surface

Answer: 3. Near the ground surface

WBBSE Class 6 Geography Chapter 8 Air Pollution Multiple Choice Question And Answers

Question 1. When We Breathe In, What Do We Take In From The Air?

  1. O2
  2. CO2
  3. NO2

Answer: 1. O2

Question 2. When We Breathe Out, What Do We Release Into The Air?

  1. O2
  2. CO2
  3. NO2

Answer: 2. CO2

Question 3. Which Of The Following Is A Toxic Gas Present In The Air?

  1. NO2
  2. O2
  3. H2

Answer: 1. NO2

Question 4. One Of The Causes Of Air Pollution Is—

  1. Afforestation
  2. Industrialization
  3. Grazing Of Animals

Answer: 2. Industrialisation

Question 5. Which Of The Following Is A Potential Cause Of Air Pollution?

  1. Population Growth
  2. Planned Urbanisation
  3. Afforestation

Answer: 1. Population Growth

Question 6. When We Cut Down Trees And Forests, The Percentage Of Which Gas In The Air Increases?

  1. O2
  2. CO2
  3. NO2

Answer: 2. CO2

Question 7. An Example Of A Toxic Air Pollutant Is—

  1. Oxygen
  2. Carbon Monoxide
  3. Nitrogen

Answer: 2. Carbon Monoxide

Question 8. Which Of The Following Is A Toxic Metal Substance That Is Released From Vehicular Smoke?

  1. Mercury
  2. Lead
  3. Cadmium

Answer: 2. Lead

Question 9. Indoor Air Pollution Is Mainly Caused Due To—

  1. Accumulation Of Wastes
  2. Deforestation
  3. Applying Paints On Walls

Answer: 3. Applying Paints On Walls

Question 10. Which Of The Following Is Used As A Fuel For Aeroplanes?

  1. LPG
  2. Diesel
  3. Gasoline

Answer: 3. Gasoline

Question 11. Asthma Attacks Are Triggered By—

  1. Water Pollution
  2. Soil Pollution
  3. Air Pollution

Answer: 3. Air Pollution

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