Q11Multiple choice
The term “water-pollution” can be defined in several ways. Which of the following statements does not give the correct definition?
- (a)The addition of undesirable substances to water-bodies
- (b)The removal of desirable substances from water-bodies
- (c)A change in pressure of the water bodies
- (d)A change in temperature of the water bodies
Show answer
(c) A change in pressure of the water bodies