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Microbes In Human Welfare

Question
CBSEENBI12003099
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Biological Oxygen Demand (BOD) is a measure of

  • Industrial wastes poured into water bodies

  • The extent to which water is polluted with an organic compound

  • Amount of carbon monoxide inseparably combined with haemoglobin

  • Amount of oxygen needed by green plants during the night 

Solution

B.

The extent to which water is polluted with an organic compound

Biological Oxygen Demand (BOD) is a meaure of polluting organic matter present in a sample of water. BOD is higher in polluted sewage water and is connected with both microbes and organic matters. When larger amount of sewage is dumped in to water, the BOD will increase.

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