Escherichia coli is used as an indicator organism to determine pollution of water with:
Correct answer: B. Faecal matter
- A. Heavy metals
- B. Faecal matter
- C. Industrial effluents
- D. Pollen of aquatic plants
Explanation
E.coli is the most common indicator of water pollution. It naturally occurs in the intestines of human beings and animals. They are commonly found in sewage and if E.coli are detected in water then it indicates faecal contamination. So if E.coli are detected in drinking water it indicates a serious health risk and that water should not be used for drinking.
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About Man and His Environment
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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