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Environmental Issues

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  1. High value of BOD (Biochemical Oxygen Demand) indicates that:
    1. Water is highly polluted
    2. Water is less polluted
    3. Consumption of organic matter in the water is higher by the microbes
    4. Water is pure
Correct Option: A

BOD (Biochemical Oxygen Demand) is a method which measures the level of water pollution. The polluted water has bacteria and many other microorganisms which consume the dissolved oxygen of water. The higher the BOD, the lower would be the dissolved oxygen in polluted water. The high value of BOD indicates the highly polluted water.


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