Nitrogen fixation is a process that makes nitrogen available to plants and is carried out by___________ .
A)bacteria
B)nitrogen gas dissolving in fresh water and in the ocean
C)volcanic eruptions
D)plants during photosynthesis

Question

Quizplus · Accepted Answer

Nitrogen fixation is primarily carried out by bacteria, such as Rhizobium, Azotobacter, and Cyanobacteria, which convert atmospheric nitrogen (N2) into a form that plants can use, such as ammonia (NH3) or nitrate (NO3-). The other choices are not involved in the process of nitrogen fixation.

Nitrogen Fixation Is a Process That Makes Nitrogen Available to Plants