Nitrifying bacteria keep the soil fertile by
-
A.
converting nitrate to nitrogen -
B.
converting ammonium salt to nitrate -
C.
converting atmospheric nitrogen to plant nitrogen -
D.
converting nitrate to nitrous oxide -
E.
converting atmospheric nitrogen to nitrates
Correct Answer: Option B
Explanation
Nitrifying bacteria are microorganisms that help to convert soil ammonium to nitrates, the form in which it is usable by the plants.