Which one of the following statement regarding BOD is true?

Options

A. The greater the BOD of waste water, more is its polluting potential.
B. The greater the BOD of waste water, less is its polluting potential
C. The lesser the BOD of waste water, more is its polluting potential.
D. The lesser the BOD of waste water, less is its polluting potential.

Answer

A

Explanation

BOD is the method of determining the amount of oxygen required by microorganisms to decompose the waste present in the water supply.It is ameasureoforganicmatterpresentin the water. If the quantity of organic wastesinthewatersupplyishighthen thenumberofdecomposingbacteria presentinthewaterwillalsobehigh. Asaresult,BODvaluewillincrease