Question

1. Mention two major sources of water pollution.
2. What are the harmful effects of eutrophication?
3. Mention the three steps used to purify water.
4. Mention two methods used to purify water at home.
5. How is water purified in a well or pond in rural areas?​

Answer 1

Answer:

factory waste products,

Answer 2

Answer:

1. Sources of Water Pollution
2. Sewage (Waste Water) Sewage is another name for waste water from domestic and industrial processes. ...
3. Agricultural Pollution. The agriculture industry covers 76% of the land area of England and Wales. ...
4. Oil Pollution. ...
5. Radioactive Substances. ...
6. River dumping. ...
7. Marine Dumping.
8. Oxygen depletion, or hypoxia, is a common consequence of eutrophication, both in fresh water and seawater. The direct effects of hypoxia include fish kills, especially the death of fish that need high levels of dissolved oxygen
9. Here are some of the most effective water purification methods that have stood the test of time:
10. Boiling. The simplest method to purify water is to boil it for a good amount of time. ...
11. Water Purifier. ...
12. Reverse Osmosis. ...
13. Water Chlorination. ...
14. Distillation. ...
15. Iodine Addition. ...
16. Solar Purification. ...
17. Clay Vessel Filtration.