Question

explain the difference between pure air and polluted air​

Answer 1

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.

Answer 2

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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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