Question

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3. Write a short note on nitrogen cycle?​

Answer 1

Answer:

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.

Explanation:

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Answer 2

$\huge{\bold{\underline{\underline{ Nitrogen~ cycle} }}}$ 

$\hookrightarrow$ Nitrogen Cycle is a biogeochemical process through which nitrogen is converted into many forms, consecutively passing from the atmosphere to the soil to organism and back into the atmosphere.

$\rightsquigarrow$ It involves several processes such as nitrogen fixation, nitrification, denitrification, decay and putrefaction.

$\longrightarrow$ The nitrogen gas exists in both organic and inorganic forms. Organic nitrogen exists in living organisms, and they get passed through the food chain by the consumption of other living organisms.

$\rightsquigarrow$ Inorganic forms of nitrogen are found in abundance in the atmosphere. This nitrogen is made available to plants by symbiotic bacteria which can convert the inert nitrogen into a usable form – such as nitrites and nitrates.

$\hookrightarrow$ Nitrogen undergoes various types of transformation to maintain a balance in the ecosystem. Furthermore, this process extends to various biomes, with the marine nitrogen cycle being one of the most complicated biogeochemical cycles.