Generally, waterborne diseases are caused by polluted water due to:
A
detergents
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B
sediments
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C
human and animals excreta
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D
organic pollutants
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Solution
The correct option is D human and animals excreta The most serious water pollutants or the disease causing agents are called pathogens. Pathogens include bacteria and other organisms that generally enter water from domestic sewage, human and animals excreta.