Question

(e) Air is polluted by smoke and poisonous gases emitted by​

Answer 1

Primary pollutants are usually produced by processes such as ash from a volcanic eruption. Other examples include carbon monoxide gas from motor vehicle exhausts or sulfur dioxide released from factories. ... Rather, they form in the air when primary pollutants react or interact

Answer 2

Answer:

industries...

Explanation:

primary pollutant are usually produced by pollutants such as ash from volcanic eruptions.....

other examples included

carbon monoxide gas from motor vehicles exhaust or sulphur dioxide raised from factories....rather they from in air when primary pollutants react or intereact....

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