Moderate
Which bacteria convert nitrite to nitrate___________________?
Correct answer: B. Nitrobacter
- A. Frankia
- B. Nitrobacter
- C. Pseudomonas
- D. None of the above
Explanation
Nitrobacter oxidizes nitrite (NO₂⁻) to nitrate (NO₃⁻), completing the second stage of nitrification. Frankia fixes atmospheric nitrogen, while Pseudomonas is commonly associated with denitrification.
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