Question

Define nitrogen fixation science​

Answer 1

Answer:

Nitrogen fixation is a process by which molecular nitrogen in the air is converted into ammonia or related nitrogenous compounds in soil. Atmospheric nitrogen is molecular dinitrogen, a relatively nonreactive molecule that is metabolically useless to all but a few microorganisms.

Answer 2

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➡️Nitrogen fixation is a biological process and the initial stage of the nitrogen cycle. In this process, nitrogen from the atmosphere is converted into ammonia (another form of nitrogen) by certain species of bacteria like Rhizobium, Azotobacter, etc. and by other natural phenomenas.

➡️Plants are the main sources of food for the living organisms. The nutrients obtained from plants are synthesized by plants using various elements which they obtain from the atmosphere and from the soil. This group of elements includes nitrogen as well. Plants obtain nitrogen from the soil and utilise in the process of protein synthesis. Unlike carbon dioxide and oxygen, atmospheric nitrogen cannot be obtained through stomata of leaves. Because the nitrogen gas present in the atmosphere can not be directly used by plants. There are certain bacteria and some natural phenomenon which help in Nitrogen fixation.

$\sf\purple{Hope \ this \ helps \ you}$

Answer by @BrainlyRascals