Question

The presence of a particular group of Bacteria in water bodies indicates contamination ,identify the group

Answer 1

the bacteria which indicates the contamination is coliform bacteria

Answer 2

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Indicator organisms are used as a proxy to monitor conditions in a particular environment, ecosystem, area, habitat, or consumer product. 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