Question

what is the composition of air how are oxygen and carbon dioxide important​

Answer 1

Answer♣

It provides us the air we breathe and protects us from the harmful effects of the sun's rays. Atmosphere is consists of mainly nitrogen (78%), oxygen (21%), argon (0.93%), carbon dioxide (0.03%) and other gases like helium, ozone, argon and hydrogen (0.04%). Nitrogen is very important for plant's survival.

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