Question 14
Nutrient CyclingNitrifying bacteria keep the soil fertile by
- A.converting nitrates to nitrogen
- B.converting ammonium salts to nitrates
- C.converting atmospheric nitrogen to plant protein
- D.converting nitrates to nitrous oxide
- E.converting atmospheric nitrogen to nitrates
Show the answer and explanation
Answer: B (converting ammonium salts to nitrates)
Explanation
Nitrifying bacteria (Nitrosomonas, Nitrobacter) oxidise ammonium compounds to nitrites and then nitrates that plants can absorb.