NEET2003ZoologyMicrobes in Human WelfareActual
Biological Oxygen Demand (BOD) is a measure of
Options
- Aindustrial wastes poured into water bodies
- Bextent to which water is polluted with organic compounds
- Camount of carbon monoxide inseparably combined with haemoglobin
- Damount of oxygen needed by green plants during night.
Correct answer
B. extent to which water is polluted with organic compounds
Step-by-step solution
To measure water pollution, Biological Oxygen Demand or BOD test is made. In this test, amount of oxygen sufficient to degrade waste organic matter by bacteria in a sample is measured. The more oxygen used up by the bacteria to degrade the organic matter in the sample, the greater the BOD would be.