Question

1Which one of the following is an indicator of faecal pollution in water? (a) Streptococci (b) Flavo bacterium (c) Clostridium (d) Saccharomyces ​

Answer 1

Explanation:

The most common indicators are total coliforms, fecal coliforms, E. coli, and enterococci. The presence of bacteria commonly found in human feces, termed coliform bacteria (e.g. E. coli), in surface water is a common indicator of faecal contamination.

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Answer 2

Answer:

Clostridium

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