High value of BOD (Biochemical Oxygen Demand) indicates that:
Correct answer: B. Consumption of organic matter in the water is higher by the microbes.
- A. Water is less polluted.
- B. Consumption of organic matter in the water is higher by the microbes.
- C. Water is pure.
- D. Water is highly polluted.
Explanation
Biochemical oxygen demand or BOD is the oxygen required for microbial decomposition of a unit mass of organic remains. The degree of impurity of water due to organic matter is measured in terms of BOD. A higher BOD of a river indicates that water is highly polluted .A high value of Biochemical Oxygen Demand (BOD) in water indicates that there is a substantial amount of organic material, such as sewage, wastewater, or other organic pollutants, present in the water. BOD is a measure of the amount of dissolved oxygen that is consumed by microorganisms while they decompose this organic material.
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