Question

write three points of difference between pure air and polluted air ​

Answer 1

Step-by-step explanation:

Explain the differences between pure air and polluted air. ... 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.

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Answer 2

Answer:

Pure water is considered to be the cleanest and it is the rid of other micro organism. Polluted water is not clean at all and also contains many harmful micro organism which make it unfit for drinking.

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.