JAMB Biology 1998 Question 30

Question 30

Nutrient Cycling

The condition that encourages denitrification is

  1. A.low soil oxygen
  2. B.high soil nitrogen
  3. C.absence of soil bacteria
  4. D.lightning and thunderstorm.
Show the answer and explanation

Answer: A (low soil oxygen)

Explanation

Denitrifying bacteria thrive in waterlogged, poorly aerated soils where oxygen is low.