MCQ
Increase of $\text{BOD}$ in water leads to:
- AIncrease in the dissolved $\mathrm{O}_2$ concentration.
- ✓Decrease in the dissolved $\mathrm{O}_2$ concentration.
- CMaintenance of dissolved $\mathrm{O}_2$ concentration at the same level.
- DNo effect on dissolved $\mathrm{O}_2$ concentration.