Question
Biology Question on Microbes in human welfare
BOD of waste water is estimated by measuring the amount of
A
Total organic matter
B
Biodegradable organic matter
C
Oxygen evolution
D
Oxygen consumption
Answer
Oxygen consumption
Explanation
Solution
Degree of impurity of water due to organic matter is measured in terms of BOD. It is the oxygen in milligrams required for five days in one litre of water at 20?C for the microorganisms to metabolise organic waste.