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JAMB Biology 1984 Question 48

Question 48

Nutrient Cycling

Denitrifying bacteria in nature liberate gaseous nitrogen directly from

  1. A.ammonium salts
  2. B.soil nitrates
  3. C.thunderstorms
  4. D.soil nitrites
  5. E.plant and animal proteins.
Show the answer and explanation

Answer: B (soil nitrates)

Explanation

Denitrifying bacteria break down nitrates in the soil and release nitrogen gas into the air.