Which of the following activitie(s) is/are responsible for the occurrence of water borne diseases in the Kolleru lake?

Agricultral activities

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Sewage discharge

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Industrial effluents

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Sediments from plains

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Solution

The correct options are
A Agricultral activities
B Sewage discharge
C Industrial effluents
Anthropogenic activities like cultivation of crops and construction of industries in the catchment area of the lake have contributed to pollution. The major pollutants released are residues of pesticides, agrochemicals, industrial effluents, municipal and domestic sewage. For the decomposition of these wastes, the lake harbors many microorganisms which are also responsible for the water-borne diseases.

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