Question

what is significance of nitrogen in the atmosphere​

Answer 1

Nitrogen is the part of our life and nitrogen almost covers the 80(percent) of atmosphere and it is essential for all plants and animals to survive.

Answer 2

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Nitrogen (N) is one of the building blocks of life: it is essential for all plants and animals to survive. Nitrogen (N2) makes up almost 80% of our atmosphere, but it is an unreactive form that is not accessible to us. Humans and most other species on earth require nitrogen in a “fixed,” reactive form.