Question

write down some main pollution that cause air pollution

Answer 1

Basic reason are
1 dirty air come out from factories
2 air come out from car
3 by dead animals which is left anywhere

Answer 2

these are
1 excessive burning of fossil fuels like coal , wood, petroleum etc.
2 smoke from factories and vehicles
3 use of certain substances like chloroflourocarbans .
hope it helps u !!