Question

Which bacteria was found in Ganga water indicating contamination?

Answer 1

1. The bacteria found in Ganga water was Coliform.
2. A coliform is a group of bacteria, found in the human intestine.
3. The presence of coliform bacteria in water indicates contamination.
4. These bacteria are found in human feces.
5. The presence of coliform bacteria is a clear indication that the water from a particular source is unfit for drinking.
6. Coliform bacteria are seen in the intestine of humans and other vertebrates.
7. Therefore their presence indicates that the water has been contaminated with human/animal waste.