High amount of esherichita coli in water is an indicator of

High amount of escherichia coli in water is an indicator of

High amount of Escherichia coli in water is an indicator of

High amount of Escherichia coli in water is an indicator of:

High amount of Escherichia coli in water indicates

The high amount of E.coli in water , is the indicator of

The high amount of E, coli in water is the

Presence of E.coli in water indicates

The presence of 20 or more genera of algae in a water body is an indication of high organic pollution. It is