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WAEC Agricultural Science 2005 Question 51

Question 51

Fisheries and Aquaculture

A common means of aerating a fish pond is by stirring the water and

  1. A.removing dead and decaying matter
  2. B.adding water plants
  3. C.adding cold water
  4. D.pumping oxygen into the water.
Show the answer and explanation

Answer: A (removing dead and decaying matter)

Explanation

Rotting matter uses up oxygen, so removing it keeps the water aerated.