Which of the following is a secondary air pol | vedclass

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(B) Secondary air pollutants are not emitted directly into the atmosphere. They are formed by chemical reactions between primary pollutants (like nitr

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Smog

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(B) Secondary air pollutants are not emitted directly into the atmosphere. They are formed by chemical reactions between primary pollutants (like nitrogen oxides and hydrocarbons) in the presence of sunlight. Smog is a classic example of a secondary pollutant,as it is formed through complex photochemical reactions in the atmosphere.

Which of the following is a secondary air pollutant?

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