Question

Note on nitrogen cycle.

Answer 1

Answer:

nitrogen involve three measure steps :

Nitrogen fixation , nitrification ,and denitrification .it is cycle within biosphere which involves atmosphere , hydrosphere ,and lithosphere . approximately 78% of air is Nitrogen . Nitrogen is important to life because it is key part of amino and nucleic acid

Answer 2

Explanation:

Steps of nitrogen cycle. .

• N2fixation
• Uptake and assimilation
• Nitrification
• Ammonification
• Denitrification

Conversion of atmosphere N2 into nitrogenese compound is known as N2 fixation

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