Question

difference between pure air and polluted air​

Answer 1

pure air is free of foreign particles and air pollutants like hydrogen sulphide Carbon monoxide sulphur dioxide pollen grains ets which are continuously added to the air thus lowering it's quality and also effects the natural composition of air ..Such type of air is regarded to be polluted

Answer 2

pure air is not harmful and polluted air is harmful.

in pure air smog is not present but in polluted air smog can be present