Question

Nitrogen content of biosphere remains constant because of :
(a) Nitrogen cycle
(b) Nitrogen fixation
(c) Industrial pollution
(d) Absorption of nitrogen

Answer 1

Answer:

The nitrogen cycle

Explanation:

the series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.

Answer 2

The nitrogen content of the atmosphere and biosphere remains constant due to the conduction of Nitrogen Cycles.  

Option (a)

Explanation:  

• The nitrogen cycle is the name of a series of cyclical processes by which the nitrogen and its host of compounds get transferred in the environment through different forms to and from the living organisms and this includes processes of decomposition as well as nitrogen fixation.
• In a typical nitrogen cycle, there are minimum five common phases, and these are the fixation of nitrogen, then nitrification followed by assimilation, then ammonification and finally denitrification.