How is the life of organisms living


How is the life of organisms living in water affected when water gets polluted ?

(CCE 2012)


Water gets polluted from domestic wastes, fertilizers, pesticides (from fields) and industrial wastes.

1. Fertilizers and domestic wastes cause eutrophication or excessive growth and increased organic loading. This, reduces oxygen available to aquatic animals,

2. Domestic waste carries pathogens of a number of diseases. Some of them can cause diseases in aquatic animals as well,

3. Pesticides and industrial wastes carry toxins that directly harm the aquatic organisms.

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