Question

I don’t know what the answer is. Plz help

Answer 1

Answer:

primary pollutant

Explanation:

A primary pollutant is an air pollutant emitted directly from a source. A secondary pollutant is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere.

Answer 2

Answer:

A

Explanation:

Hope this helps!