Question

which process occurs when bacteria converts nitrogen gas to a usable form?
o transpiration
o fixation
o condensation
o decomposition

Explanation:

Nitrogen - fixing bacteria convert nitrogen gas into ammonia or other usable forms in the nitrogen cycle. This process is called nitrogen fixation. Transpiration is related to water movement in plants, condensation is a phase - change process in the water cycle, and decomposition is the breakdown of organic matter.

Answer:

fixation