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JAMB Biology 2015 Objective — Question 1

Question 1 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2015 Objective paper, with the correct answer and a full explanation.

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Pollution of water by crude oil can lead to

  • A. a decrease in carbon(IV)oxide content
  • B. an increase in oxygen content
  • C. a decrease in oxygen contentCorrect
  • D. an increase in growth of aquatic organisms

Explanation

Crude oil is a major pollutant of water; it blocks oxygen exchange at the surface, leading to a decrease in the oxygen content of the water.

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