Question

define nitrogen cycle ​

Answer 1

the series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.......

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Answer 2

Atmosphere is made up of many gases the main gas is nitrogen which is 78% of total gas. nitrogen is one of the essential constitution of living organisms as part of protein chlorophyll nucleic acids and vitamins the atmospheric nitrogen cannot be taken directly by plants

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