Which of the following processes restores nitrogen to the air?
A) Ammonification
B) Nitrification
C) Denitrification
D) Renitrification
E) Nitrogen fixation

Question

Quizplus · Accepted Answer

Denitrification is the process by which bacteria convert nitrates back into nitrogen gas, returning it to the atmosphere. This contrasts with other processes like ammonification, nitrification, and nitrogen fixation, which are involved in converting nitrogen into forms usable by plants or converting ammonia into nitrates or nitrites.

Which of the Following Processes Restores Nitrogen to the Air