Answer:
1.Water is obviously essential for hydration and for food production—but sanitation is an equally important, and complementary, use of water.
2.Sedimentation.
Runoff.
Erosion.
Dissolved oxygen.
3.Ontario First Nation of Attawapiskat isn't safe. It has high levels of a chemical byproduct produced by the chlorination process in the community's ailing water plant that needs millions of dollars in repairs.
4.Boiling. This is a reliable way to purify water.
Use of Iodine solution, tablets or crystals. This is an effective and more convenient method. ...
Use chlorine drops. Chlorine has the ability to kill bacteria in water. ...
Use water filter. ...
Use Ultraviolet Light.