Identify the important effects of water pollution.
The correct option is D It spreads water-borne diseases and epidemics.
The important effects of water pollution are: It spreads water-borne diseases and epidemics like cholera, typhoid, diarrhea, jaundice, etc. It also causes the death of aquatic life, affects irrigation water and crops, nature and features of water causes disruption of the natural food chain, etc.