What are the harmful effects of water pollution?
Answer:
- Polluted water causes a number of water-borne diseases like cholera, typhoid, jaundice, diarrhoea, hepatitis and dysentery.
- Presence of acids or alkalies in water destroys certain microorganisms, which carry out the self-purification process in rivers.
- Decrease in the amount of dissolved oxygen in the water body adversely affects the life of aquatic organisms.
- Change in water temperature disturbs the aquatic life as eggs and larvae of various animals are badly affected by such changes.