Question

write down any five factors that cause water pollution​

Answer 1

Answer:

following are the factors that cause water pollution

1. human population growth
2. industrialization
3. natural resources development
4. effluents outflow from factories, refineries, etc
5. untreated sewage

Answer 2

Answer:

Causes Of Water Pollution

1. Sewage and waste water: Sewage water is drained off into rivers without treatment. The sewage water carries harmful bacteria and chemicals that can cause serious health problems. A very common example of this process would be Malaria.

2. Mining activities: Mining is the process of crushing the rock and extracting coal and other minerals from underground. Mining activities emit several metal waste and sulphides from the rocks and is harmful for the water.

3. Accidental Oil leakage: When the oil is spilled in the ocean, it initially spreads in the water, depending on its relative density and composition. Oil wastes that enter the sea come from many sources, some being accidental spills or leaks.

4. Global warming: An increase in earth’s temperature due to greenhouse effect results in global warming. It increases the water temperature and results in the death of aquatic animals and marine species which later results in water pollution.

5. Animal waste: The waste produced by animals is washed away into the rivers when it rains. It gets mixed up with other harmful chemicals and causes various water-borne diseases like cholera, diarrhoea, jaundice, dysentery, and typhoid.