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| Q.71 | The term water pollution is used to cover which of the following effects? I. The addition of undesirable substances to water bodies. II. The removal of desirable substances from water bodies. III. A change in temperature in the water body. | |
| Ans | 1. II and III | |
| 2. I, II and III | ||
| 3. I and III | ||
| 4. I and II |
Correct Ans Provided: 2
