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JAMB Biology 1981 Question 32

Question 32

Nutrient Cycling

Nitrification means

  1. A.conversion of nitrates to nitrogen
  2. B.fixing nitrogen into plants
  3. C.conversion of nitrates to nitrites
  4. D.changing of ammonia to nitrites, then nitrates
  5. E.nitrogen cycle.
Show the answer and explanation

Answer: D (changing of ammonia to nitrites, then nitrates)

Explanation

Nitrifying bacteria oxidise ammonia to nitrites and then to nitrates.