How does the amount of nitrogen in atmosphere remain more or less constant?

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

The atmospheric nitrogen is constantly fixed by certain microbes or by lightning, which can then be used by plants and other living organisms. But when these organisms die, the nitrogenous compounds in their bodies are decomposed by certain microorganisms and then further converted by certain bacteria into nitrogen gas which is released into the atmosphere. This maintains the level of nitrogen in atmosphere.

Answered by  | 4th Jun, 2014, 03:23: PM