Question

It was found that water from a river was contaminated with Coliform bacteria. Which one of the following pollutant might have got mixed with the water?
i) Fertilizer run off
ii) Industrial waste
iii) Pesticides
iv) Human faecal matter

Answer 1

Answer:

4 Human faecal matter becauce because coliforms are present in our stomach

Answer 2

Human faecal matter is a pollutant that might have got mixed with the water.  

Option (iv)

Explanation:

• The presence of the Coliform bacteria in the water proves that there was a mixture of the feces and sewage with the water.
• So the water is contaminated with the feces of humans or animals. Coliform bacteria cause diseases which are carried by the water and causes illness.
• Escherichia coli is the subgroup of the Coliform bacteria. These types of bacteria can be found at the intestine of the human and the warm-blooded animals.

To know more about Human faecal matter

Answer in one sentence : Name the pigments which give colour to faecal matter ​

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Name a human disease, its causal organism , symptoms *(any three) and vector spread by intake of water and food contaminated by human faecal matter.

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