Biochemical reduction of nitrate to nitrite or gaseous nitrogen is called ________________________?
Correct answer: B. Denitrification
- A. Reduction
- B. Denitrification
- C. Oxidation
- D. None of the above
Explanation
Denitrification is the microbial reduction of nitrate, commonly through nitrite, to gaseous nitrogen forms such as N₂ and N₂O under low-oxygen conditions. Simple reduction is the general chemical process, whereas denitrification is the specific nitrogen-cycle process.
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