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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Another cause that could lead to phenomenon in the diagram is
- 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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