Increase in the BOD of water reservoir is due to

Assertion: If BOD level of water in a reservoir is less than 5 ppm it is highly pollution. Reason: High biological oxygen demand means low activity of bacteria in water.

Assertion: If BOD level of water in a reservoir is less than 5 ppm it is highly pollution. Reason: High biological oxygen demand means low activity of vacteria in water.

The greater BOD of waste water