Q. 94.3( 3 Votes )

The nitrogen molecules present in air can be converted into nitrates and nitrites by
A. a biological process of nitrogen fixing bacteria present in soil

B. a biological process of carbon fixing factor present in soil

C. any of the industries manufacturing nitrogenous compounds

D. the plants used as cereal crops in field

Answer :

Nitrogen fixation is a process by which nitrogen in the Earth's atmosphere is converted into ammonia (NH3) or other molecules available to living organisms. Atmospheric nitrogen or molecular dinitrogen (N2) is relatively inert: it does not easily react with other chemicals to form new compounds.

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