Question

Explain the difference between pure air and polluted air ?​

Answer 1

Answer:

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:

hi sister

good morning

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.

Explanation:

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