CBSE Class 6 Science Question 14 of 18

Natures Treasures — Question 14

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14
Question
Explain two ways in which human activities pollute the air. Propose one action which can help in reducing air pollution.
Answer

(i) Deforestation reduces the number of trees that can abdorb carbon dioxide, increasing the concentration of greenhouse gases.
(ii) Burning fossil fuels in vehicles and factories releases harmful pollutants like carbon monoxide and sulphur dioxide into the air.
Action to reduce air pollution: Promote the use of public transport and electric vehicles to decrease the number of fossil fuel-powered vehicles on the road.