Biology, asked by AdityaGL, 1 year ago

What is nitrogen cycle???

ARIF7861: The nitrogen cycle is of particular interest to ecologists because nitrogen availability can affect the rate of key ecosystem processes, including primary production and decomposition. Human activities such as fossil fuel combustion, use of artificial nitrogen fertilizers, and release of nitrogen in wastewater have dramatically altered the global nitrogen cycle

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Answered by Anonymous

The process by which nitrogen and its compound are interconverted in the environment and in living organism including nitrogen fixing and decomposition, it is called nitrogen cycle..

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Answered by ChelsiNegi

Nitrogen exists as free nitrogen in the atmosphere. In air N2 is about 78 percentage. This free nitrogen is fixed into different nitrogen compounds such as ammonia and nitrates. Most of the organisms cannot utilize nitrogen as molecular nitrogen.
Fixation of free nitrogen into compounds takes place by following means
1) certain blue green algae and bacteria can fix atmospheric nitrogen
2) lightning also helps in the formation of Nitrogen containing compounds
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