Question

question 58
______ convert nitrogen from nitrates to n₂.
○ nitrifying bacteria
○ nitrogen - fixing bacteria living in the soil
○ nitrogen - fixing bacteria living in the root nodules of legumes
○ denitrifying bacteria

Explanation:

• Nitrifying bacteria convert ammonia to nitrites and nitrates.
• Nitrogen - fixing bacteria (in soil or root nodules) convert atmospheric \(N_2\) to ammonia.
• Denitrifying bacteria convert nitrates (\(NO_3^-\)) to \(N_2\).

Answer:

Denitrifying bacteria