What is the 'earth's atmosphere' made up of?

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What is the 'earth's atmosphere' made up of?

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Answer 1 · 2016-03-20T20:10:31

$78 %$ $78%$ Nitrogen | $21 %$ $21%$ Oxygen | $0.9 %$ $0.9%$ Argon | $0.04 %$ $0.04%$ ${CO}_{2}$ $"CO"_2$ | $0.06 %$ $0.06%$ Other Gases

Explanation:

The main gases in our atmosphere are nitrogen & oxygen.

About four-fifths ( $80 %$ $80%$ ) of the atmosphere is nitrogen & one-fifth ( $20 %$ $20%$ ) is oxygen.

The Evolution of Plants removed much of the early Earth's atmosphere's ${CO}_{2}$ $"CO"_2$ , not to mention the introduction of more oxygen removed other harmful gases such as ammonia & methane by reacting with it.

$C H_{4} + 2 O_{2} \to C O_{2} + 2 H_{2} O$ $CH_4 + 2O_ 2 rarr CO_2 + 2H_2O$

$4 N H_{3} + 3 O_{2} \to 2 N_{2} + 6 H_{2} O$ $4NH_3 + 3O_2 rarr 2N_2 + 6H_2O$

This made more ${CO}_{2}$ $"CO"_2$ available for plants, created more water to support animal life & got rid of poisonous gases which killed off animal life, without plants, we wouldn't be here.

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What is the 'earth's atmosphere' made up of?

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