Answered

What is the role of nitrogen-fixing bacteria in the nitrogen cycle?

A. They convert nitrogen gas (N2) into a form that plants can use.
B. They convert ammonia (NH3) into nitrate (NO3-).
C. They convert nitrate (NO3-) into nitrogen gas (N2).
D. They break down organic nitrogen compounds into ammonium (NH4+).



Answer :

GinnyAnswer

Final answer:

Nitrogen-fixing bacteria convert atmospheric nitrogen into ammonia for plant use in the nitrogen cycle.


Explanation:

Nitrogen-fixing bacteria play a crucial role in the nitrogen cycle by converting atmospheric nitrogen into ammonia, which can then be utilized by plants. This process is essential as nitrogen in its gaseous form is not directly accessible to most organisms.


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