Question

Explain the differences between pure air and polluted air.

Answer 1

Firstly, there is nothing called 'pure' air. There is unpolluted and polluted air. Unpolluted air is free from many harmful chemicals which can easily harm living beings and non living things, while polluted air contains many harmful chemicals which harms living beings and non living things.

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Answer 2

Answer:-

Pure air contains 78% nitrogen, 21% oxygen and 0.03% C02. Other gases such as argon, methane, neon, water vapour, etc. are also found in small quantities. When this air is contaminated by unwanted substances which have harmful effect on both living and non-living things like nitrogen oxide, sulphur oxide, carbon monoxide, etc., is said to be polluted.

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