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Revision: Science >> Water Science Secondary School (English Medium) (5 to 8) Class 6 CBSE

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Definitions [3]

Define ‘eutrophication’.

Eutrophication: “Organic matter in sewage poured into water bodies generally results in excessive growth of algae – which deoxygenates water and produces deadening atmosphere there.”

Define – Freshwater.

Water is obtained naturally from ice sheets, ice caps, glaciers, icebergs, ponds, lakes, rivers, streams, and underground is called freshwater.

Answer the following question.
What is water harvesting? 

The collection of rainwater for direct use or for recharging the groundwater level for indirect use is called water harvesting.

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