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Question

A common indicator organism of water pollution is


A

Eichhornia crassipes

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B

Entamoeba histolytica

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C

Escherichia coli

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D

Lemna paucicostata

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Solution

The correct option is C

Escherichia coli


Indicator bacteria are bacteria which are used to detect and estimate the level of faecal contamination in water. Coliform bacteria such as provide definite evidence of recent faecal pollution.


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