Why has air pollution increased due to decreasing trees and vegetation

1.	Why has air pollution increased due to decreasing trees and vegetation?
Answer» Trees and plants absorb the harmful CO₂ gas from the atmosphere and release useful O₂ gas. When trees are cut, the proportion of CO₂ increases in the atmosphere thus increasing air pollution. Dust particles get mixed with air due to the decreasing tree-and-forest cover resulting in the increase of air pollution.

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