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Humans use nitrogen in the form of proteins. Bacteria found in soil convert atmospheric nitrogen into nitrates that plants use to produce proteins.
Bacteria Ammonia, nitrates, nitrites
Bacteria Ammonia, nitrates, nitrites
The carbon cycle and nitrogen cycle are related due to both plants and mammals using them. Plants take both carbon and nitrogen in and convert them to sugars and proteins that humans eat when eating the plants.
Nitrogen help humans in diffrent ways
Bacteria =========================== Specifically a particular type of bacteria that live in nodules on the roots of certain plants (eg the Legume family) called "Nitrogen Fixing Bacteria" . Not other bacteria decompose organic material and release nitrogen back into the atmosphere.
Humans add nitrogen to the biosphere in the form of nitrate, a major component of plant fertilizer.
The same reason humans do. People breath oxygen and nitrogen.
It is possible for humans to suffocate and die in pure nitrogen.
Humans.
fertilizer
By eating plants