The process you are referring to is called biological nitrogen fixation. In this process, nitrogen-fixing bacteria, often found in the root nodules of certain plants (such as legumes), convert atmospheric nitrogen gas (N₂) into ammonia (NH₃). This ammonia can then be used by the plants for growth. The nitrogen-fixing bacteria engage in a symbiotic relationship with the plants, providing them with essential nitrogen while receiving carbohydrates and a suitable environment in return.
Where nitrogen fixation that live in the roots of certain plants convert the nitrogen gas ammonia. This process is called
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