14. In which process is nitrogen from the air put into a form that plants can use?

A. denitrification
B. nitrogen fixation
C. nitrification
D. nitrogen saturation



Answer :

Final answer:

Nitrogen fixation is the conversion of gaseous nitrogen into ammonia, making it available for plants to use.


Explanation:

Nitrogen fixation is the process by which gaseous nitrogen is transformed into more readily available forms such as ammonia. This conversion is essential for making nitrogen usable by plants. For example, some nitrogen-fixing bacteria live in soil, while others reside in the root nodules of legumes like peas and beans.


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