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What is nitrogen cycle ?

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What is nitrogen cycle ?

Posted by Koushik K 3 years, 10 months ago

CBSE > Class 08 > Science

5 answers

Kawareer Abdal Beig 3 years, 10 months ago

The cyclic process of nitrogen fixed, and used by plants & animals & later returned to the atmosphere, is referred as nitrogen cycle.

Yogita Ingle 3 years, 10 months ago

Nitrogen cycle is all about the movement of nitrogen between various elements on Earth (like air, soil, living organisms etc.) The amount of nitrogen in the atmosphere remains constant.

Atmosphere has approx. 78% nitrogen.
Atmospheric Nitrogen is fixed into the soil
- N₂ fixing microbes convert atm. N₂ into nitrogen compounds like NH₃
Plants utilize nitrogen from soil through their roots
Animals utilize nitrogen, feeding on plants
When Plants & animals die, Nitrogenous wastes are returned to soil
- Decomposers convert some part to nitrogen compounds to be used by plants
- Denitrifying bacteria convert into atm. N₂

Saumya Kumar 3 years, 10 months ago

you can write which one you like and its your choice and pls hit the like button

Saumya Kumar 3 years, 10 months ago

The nitrogen cycle is the biological 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.

Saumya Kumar 3 years, 10 months ago

The processes by which nitrogen and it's compounds are interconverted in the enviornment and in living organisms , including nitorgen fixation and decomposition

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