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Describe the composition of atmosphere and state the importance of each of the constituents​

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Answer:

Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%. Gases like carbon dioxide, nitrous oxides, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.

Nitrogen is used by plants in the form of nitrates and nitrites as fertilizers

Oxygen is used by living beings for respiration

Carbon dioxide is used by plants during photosynthesis

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