Nitrogen returns to the atmosphere through a process called(1 point) Responses denitrification. denitrification. nitrification. nitrification. nitrogen cycle. nitrogen cycle. nitrogen fixation.

Answer 1

Nitrogen returns to the atmosphere primarily through a process called **denitrification**. This is the process by which nitrates (NO3^-) in the soil are converted by certain bacteria into nitrogen gas (N2), which is then released back into the atmosphere.