AP BIOLOGY

Detailed explanation-1: -Denitrification is the process in which the nitrogen compounds make their way back into the atmosphere by converting nitrate (NO3-) into gaseous nitrogen (N). This process of the nitrogen cycle is the final stage and occurs in the absence of oxygen.

Detailed explanation-2: -Denitrifying bacteria convert the nitrate back into nitrogen gas, which reenters the atmosphere.

Detailed explanation-3: -Denitrification. Denitrification is the process that converts nitrate to nitrogen gas, thus removing bioavailable nitrogen and returning it to the atmosphere.

Detailed explanation-4: -denitrifying bacteria, microorganisms whose action results in the conversion of nitrates in soil to free atmospheric nitrogen, thus depleting soil fertility and reducing agricultural productivity.

Detailed explanation-5: -Denitrifying bacteria, also known as nitrate-reducing bacteria (NRB), refers to a group of bacteria that helps to convert nitrates or nitrites into nitrogen-containing gases. This conversion is crucial for the atmosphere. It completes the nitrogen cycle by recycling nitrogen into the atmosphere.