JAMB Chemistry 2011 Objective — Question 20

Question 20 of 49 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2011 Objective paper, with the correct answer and a full explanation.

An effect of thermal pollution on water bodies is that the

A. A. level of oxygen reducesCorrect
B. B. volume of water reduces
C. C. chemical waste increases
D. D. level of oxides of nitrogen increases

Explanation

The solubility of gases decreases as temperature increases. Thus, thermal pollution (raising water temperature) reduces the level of dissolved oxygen in water bodies.

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