What are the optimum temperature and pH for nitrifying bacteria?

1. A Option A: 25-40°C, pH 8-8.5
2. B Option B: >35°C, pH less than 5
3. C Option C: 30-35°C, pH 5.5
4. D Option D: All of these

Answer checked 11 October 2026 · How we write and check questions