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| Q.117 | Which of the following statements is/are correct in the context of Biochemical Oxygen Demand (BOD)? I. Clean water would have BOD value of less than 5 ppm. II. Highly polluted water could have a BOD value of 17 ppm or more. | |
| Ans | 1. Neither I nor II | |
| 2. Both I and II | ||
| 3. Only I | ||
| 4. Only II |
Correct Ans Provided: 2
