Question

what is meant by nitrogen fixation ? ​

Answer 1

                         Nitrogen Fixation

Nitrogen fixation is the process by which nitrogen is taken from its stable gas form (N$_{2}$) in air and changes into other nitrogen compounds (such as ammonia, nitrate and nitrogen dioxide) useful for other chemical processes. It is an important part of the nitrogen cycle.

Because it is the principal source of the nitrogen in the soil, nitrogen that plants need to grow, nitrogen fixation is one of the most important biochemical processes on Earth

Examples of symbiotic nitrogen-fixing bacteria include Rhizobium

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Answer 2

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Nitrogen fixation is the process in which atmospheric nitrogen is converted into the form of ammonia and get inside the soil (fixed in soil ) .