Question

How can you say that the dust is a pollutant?

Answer 1

Dust remains present in air as suspended particles. It can cause allergy and other respiratory diseases. It also affects plant growth by covering stomata on leaf surface and blocking them. It acts as the carrier of toxic compounds like heavy metals.

Answer 2

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Dust particles remain suspended in the air and can cause allergy and other respiratory diseases. These may also affect plant growth by depositing on the surface of leaves. These may also act as carriers of toxic compounds which get dissolved in water that we use.