Question

define nitrogen cycle. what are nitrogen fixer please don't write Useless Answer pleaseeeeeee It's urgent​

Answer 1

Nitrogen cycle- The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes.

Nitrogen fixer- Nitrogen fixation is a process by which molecular nitrogen in the air is converted into ammonia or related nitrogenous compounds in soil. Atmospheric nitrogen is molecular dinitrogen, a relatively nonreactive molecule that is metabolically useless to all but a few microorganisms. 

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Answer 2

Definition of nitrogen cycle

The nitrogen cycle is the biogeochemical cycle which nitrogen is converted into multiple chemicals forms it circulates among atmosphere, terrestrial and marine ecosystem. The conversion of nitrogen can be carried out both biological and physical process.

definition of Nitrogen fixation

chemical process by which atmosphere nitrogen is assimilated into organic compounds especially by certain microorganism as part of the nitrogen cycle.

nitrogen fixer

any of various microorganism in the soil involved in the process of nitrogen fixation.

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