Which best describes nitrogen fixation? Nitrogen fixation is the process of creating free nitrogen for plants to absorb. Nitrogen fixation is the breakdown of nitrogen in the soil. Nitrogen fixation is the conversion of nitrogen gas into a usable form. Nitrogen fixation is the destruction of the bonds between nitrogen and other elements.

The process of assimilation of atmospheric nitrogen into organic compound by some type of micro-organisms is called nitrogen fixation. It is the conversion of nitrogen gas into a usable form for plants and other microbes.

What are the steps in nitrogen cycle?

Nitrogen is the most important complex for the environment and is the most abundant gas. Nitrogen fixation is a step by step procedure that involves various steps.

The steps of nitrogen fixation is as follows:

Nitrogen fixation: nitrogen enters soil and surface waters, here it gets converted into two atoms, which combines to form ammonia.
Nitrification: The conversion of ammonia into nitrates and nitrites. It involves different kinds of bacteria.
Assimilation:The consumption of nitrites and nitrates by plants.
Ammonification: it is the release of nitrogen back to organic form by death of plants and animals.
Denitrification: The conversion of ammonia back to nitrogen is called as denitrification.

Thus, the correct option is C.

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