Question

list any three human activities that you think would lead to air pollution​

Answer 1

Three human activities that would lead to air pollution are: i) Emission of harmful gases and dust particles from vehicles. ii) Combustion of fossil fuels like coal, petroleum releasing oxides of nitrogen and sulphur. iii) Smoke released from industries containing harmful gases like sulphur dioxide, oxides of nitrogen.

Answer 2

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Following are some human activities responsible for an increase in carbon dioxide content of air:-

• Burning fossil fuels like diesel and petrol.
• Burning firewood and charcoal.
• Felling down the trees.