The main nitrogen reservoir in the biosphere is
A. Atmosphere
B. Ocean
C. Organisms
D. Rocks
Answer: Option A
Solution (By Examveda Team)
The main nitrogen reservoir in the biosphere is Atmosphere.Atmosphere is a layer of gas or layers of gases that envelop a planet and is held in place by the gravity of the planetary body.
It is composed of nitrogen (78%), oxygen (21%), argon (0.9%), carbon dioxide (0.04%) and trace gases.
This Question Belongs to Agriculture >> Environmental Science In Agricultural
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