Question

_maintain the percentage of nitrogen at the constant level​

Answer 1

Explanation:

The percentage of gases like oxygen, nitrogen and carbon dioxide remains almost the same in the atmosphere bcoz the cycling process of all these gases maintains their percentage in the atmosphere at constant level. Constant recycling replenishes the lost gas in the atmosphere and balance is maintained

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Answer 2

Explanation:

The percentage of nitrogen in the atmosphere remains constant through nitrogen cycle and various processes such as lightning etc. the percentage of nitrogen in the atmosphere remains more or less constant because of many processes such as lightning, nitrogen fixation,and of course because of nitrogen cycle.

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