Question

what is mean by air pollution ?​

Answer 1

air pollution :-

contamination of air by harmful substances is called air pollution .

factors responsible for air pollution :-

1) particulate matter

2) poisonous gases

3) microbes

4) smoke

Answer 2

Answer:

mixing of harmful substances ( pollutants ) with air is called air pollution

or

Air pollution is a mixture of solid particles and gases in the air. ... When ozone forms air pollution, it's also called smog. Some air pollutants are poisonous. Inhaling them can increase the chance you'll have health problems.

Hope it helps