Question

Which of the following is the correct term for the process by which nitrogen returns to the atmosphere? ammonification assimilation denitrification nitrification

Answer 1

The answer is Denitrification.

Denitrification is the reduction of nitrates back into the largely inert nitrogen gas (N2), completing the nitrogen cycle. This process is performed by bacterial species such as Pseudomonas and Clostridium in anaerobic conditions.