| (i) Avoiding the use of chemical substances freely. |
| (ii) Educating society about the dangers of water pollution. |
| (iii) Using biological control in agricultural areas instead of using pesticides. |
A) Only (i) and (ii)
B) Only (ii) and (iii)
C) Only (i) and (iii)
D) (i), (ii) and (iii)
Correct Answer: D
Solution :
The methods that can be used to control water pollution are (i) avoiding the use of chemical substances freely. (ii) educating society about the dangers o1 water pollution. (iii) using biological control in agricultural area; instead of using pesticides.
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