Question

Explain the difference between pure air and polluted air?​

Answer 1

Answer:

Pure air is free from germs and harmful gases. It contains 78% nitrogen, 21% oxygen and small amount of other gases and dust particles. Polluted air contains harmful gases and unwanted substances.

Explanation:

Answer 2

Answer:pure air is also known as fresh air means is free from germs and harmful gases. polluted air means not free from harmful gases it is not good to breathe from unwanted gases.from polluted air to avoid it look which place is not a polluted air. hope it helps you. Sorry for the late☹️.

Explanation: