Q57 of 76 Page 259

The main reason for the abundant coliform bacteria in the water of river Ganga is :

Disposal of unburnt corpses into river water is the main reason behind abundant coliform bacteria in river Ganga.

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55

Which of the following is not a natural resource ?

 56

The three. R's which can help us to conserve natural resources for long term use are:

 58

The pH of a sample of water collected from a river is found to be in the range of 3.5 to 4.5. The most likely reason for this is the waste being discharged into the river from a :

 59

Which of the following statement is incorrect ?