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WAEC Agricultural Science 2023 Question 18

Question 18

Soil Fertility and Plant Nutrition

The bacterium which is responsible for conversion of ammonium compounds to nitrites in the nitrogen cycle is

  1. A.Azotobacter.
  2. B.Rhizobium.
  3. C.Nitrosomonas.
  4. D.Nitrobacter.
Show the answer and explanation

Answer: C (Nitrosomonas.)

Explanation

Nitrosomonas turns ammonium into nitrite.