Question

different difference between pure and polluted air point wise​

Answer 1

Pure air has 78% nitrogen, 21% is oxygen and carbon dioxide, argon, methane, ozone and water vapour are also present in very small quantities. Pure air has balanced quantity of all its constituent gases and it is free from harmful gasesand is fit for breathing.

On the other hand polluted air has unwanted gases and other suspended impurities like dust and smoke. It is unfit for breathing and has a harmful effect on both the living and the non-living.

Answer 2

Explanation:

☆ Pure air is very useful for us .

☆ It keeps us healthy and active.

☆ Polluted air causes very harmful disease which affects our life.

☆ So we should have stay in clean environment.