Question

the presence of a particular group of bacteria in water bodies indicates contamination .ifentify the group

Answer 1

Answer:

In the presence of coliform bacteria group in water bodies that indicates contamination .

Answer 2

The presence of Coliform group of bacteria in water bodies indicates contamination

Explanation:

• A few varieties of bacteria are considered as indicator organisms for pollution. One such group is Coliform bacteria.

• The presence of Coliform bacteria e.g. E.Coli in the surface water is a common indicator of fecal contamination.

• The  particular group of bacteria, the presence of which can indicate contamination in the water body are coliform bacteria such as Escherichia coli and some non-coliform bacteria, such as Streptococcus bovis and certain clostridia .

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