List two main causes of the pollution of water of the river Ganga. State how pollution and contamination of river water prove harmful for the health of the people of neighbouring areas.
Causes for pollution of water of river Ganga:
- Dumping of untreated sewage
- Industrial wastes
- Growth of disease-causing microorganisms in the river water.
- The river water becomes more acidic which makes the soil acidic and affects the productivity of crops.