Question

what is secondary air pollutants ???​

Answer 1

Examples of a secondary pollutant include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight; NO2, which is formed as NO combines with oxygen in the air; and acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water.

Answer 2

Hii dear

hear is your answer

A secondary pollutant is not directly emitted as such but, form when other pollutant (primary pollutant ) react with atmosphere.

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