Answer:
It is essential because its availability can affect the rate of key ecosystem processes(primary production and decomposition).
Explanation:
78% of earths atmosphere is nitrogen which is a majority. During nitrogen fixing, atmospheric nitrogen gas is released and converted into soil nitrate. Here, atmospheric nitrogen can be captured by symbiotic organism like the root noodle bacteria-Rhizobium Leguminosarium and non-symbiotic organisms like Azotobacter, Clostridium and Nostoc are converted into soil nitrate. The nitrate is then absorbed by the plants through its roots.
