Biochemical Oxygen Demand (BOD) is the amount of oxygen that would be consumed if all the organic matter in one litre of water were oxidized by bacteria. The BOD test measures the rate of uptake of oxygen by micro-organisms in a sample of water and thus, indirectly, BOD is a measure of the organic matter present in the water. The greater the BOD of waste water, more is its polluting potential.
The high value of BOD (Biochemical Oxygen Demand) indicates that:
NEET UG 2015 — Zoology Microbes in Human Welfare
2015mcqeasy
The high value of BOD (Biochemical Oxygen Demand) indicates that:
Official previous-year question
Held on 30 Apr 2015 · Verified 9 Jul 2026.
Options
- A
Water is pure
- B
Water is highly polluted
- C
Water is less polluted
- D
Consumption of inorganic matter in the water is higher by the microbes
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