the presence of a particular group of Bacteria in water bodies indicate contamination indentify the group
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Indicator organisms are used as a proxy to monitor conditions in a particularenvironment, ecosystem, area, habitat, or consumer product. The presence ofbacteria commonly found in human feces, termed coliformbacteria (e.g. E. coli), in surface water is a common indicator of faecalcontamination.
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Water quality involves measuring the number of colonies of Protozoa
Protozoa are micro parasites that improve the water quality by eating the bacteria and other particles in the water. They are parasites that depend on other organism to live. They can be found in any environment on the planet from the peak of the mountain to the deepest of the ocean.
A water source is considered to be contaminated when the water source has the presence of E.Coli bacteria in large level.
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