Sewage infection of water will be demonstrated by cysts of

Entameoba

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Escherichia coli

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Pseudomonas

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Leishmania

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Solution

The correct option is A Entameoba
Infective forms of Entameoba, a protozoan are often passed as cysts in the faeces and humans are infected when they ingest them through the source of sewage, non-treated drinking water, flies in water supply.
So, the correct answer is option A.

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Similar questions

(i) Cholera can be caused by eating or drinking water contaminated by faeces of an infected person.

(ii) Cholera can be spread rapidly in areas where there is inadequate treatment of sewage & drinking water.

Choose the correct options.

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