if you find coliform bacteria in a sample of water collected from a river, what would you conclude? give reason for such kind of water pollution.
If we find caliform bacteria in a sample of water then it means that the water is polluted. Though caliform itself is not harmful its presence indicates the presence of other harmful bacteria.
There are many reasons of water pollution:-
1. Disposal of untreated sewage in rivers.
2. Excessive use of insecticides, pesticides and chemical fertilisers.
3. Acid rain.
There are many reasons of water pollution:-
1. Disposal of untreated sewage in rivers.
2. Excessive use of insecticides, pesticides and chemical fertilisers.
3. Acid rain.