What is the name of the natural process that is responsible for replenishing N2 back in the atmosphere from NO3–?
A. Nitrification
B. Nitrogen fixation
C. De-nitrification
D. Nitrate fixation
Answer:D
What is the name of the natural process that is responsible for replenishing N2 back in the atmosphere from NO3–?
A. Nitrification B. Nitrogen fixation C. De-nitrification D. Nitrate fixation