Question

Difference between fresh air and polluted air

Answer 1

Answer:

fresh air that give us from plant and pollute air give us from air pollution

fresh air are helpful every living organisms and pollute air are harmful they produce such gases like hydrogen,helium and carbon dioxide

fresh air produce such gases like oxygen and nitrogen everybody respire oxygen

Answer 2

Answer:

fresh air- fresh air is free from germs and harmful gasses. it contains 78 percent nitrogen, 21 perfect oxygen and small amount of other gases and dust particles.

polluted air- it contains harmful gases and unwanted substances.

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