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WAEC Agricultural Science 2015 Question 41

Question 41

Fisheries and Aquaculture

Which of the following compounds can be used to seal soil pores and prevent loss of water in a fish pond?

  1. A.Sulphur (iv) oxide.
  2. B.Ammonium sulphate.
  3. C.Calcium carbonate.
  4. D.Potassium hydroxid.
Show the answer and explanation

Answer: C (Calcium carbonate.)

Explanation

Calcium carbonate (lime) flocculates the clay at the pond bottom and helps seal it against seepage.