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A river with an inflow of domestic sewage rich in organic waste may result in
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- drying of the river very soon due to algal bloom.
- increased population of aquatic food web organisms.
- an increased production of fish due to biodegradable nutrients.
- death of fish due to lack of oxygen.
Correct Option: D
Domestic sewage rich in organic waste leads to increase in Biological Oxygen Demand, which leads to decrease D.O. (dissolved oxygen) which leads to death of fishes.
