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WAEC Biology 2016 Objective — Question 29

Question 29 of 50 from the West African Examinations Council (WAEC) Biology 2016 Objective paper, with the correct answer and a full explanation.

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29. Another cause that could lead to phenomenon in the diagram is A. exhaust from cars B. oil spillage C. dumping of sewage D. excess rainfall

Diagram for question 29
  • A. exhaust from cars
  • B. oil spillage
  • C. dumping of sewageCorrect
  • D. excess rainfall

Explanation

Dumping of sewage may also result in excessive algal growth which may clog up our water ways.

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