definition of nitrogen fixation.
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Nitrogen fixation is a process by whichnitrogen in the air is converted into ammonia (NH3) or related nitrogenous compounds. ... Some nitrogen-fixingbacteria have symbiotic relationships with some plant groups, especially legumes.
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Explanation:
the conversion of atmospheric nitrogen into a combined form (such as ammonia) through chemical and especially biological action (such as that of soil rhizobia)
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