1-Any two natural cleaning agents in rivers and other water bodies?
2-Any two organisms feeding on dead and decaying matter?
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Explanation:
The following are the common methods of water purification.
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.
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