Q34 / 160 · JIPMER 2011 · Botany

Biological Oxygen Demand (BOD) is a measure of

  • A
    industrial wastes poured into water bodies
  • Correct answer
    B
    extent to which water is polluted with organic compound
  • C
    amount of carbon monoxide inseparably combined with haemoglobin
  • D
    amount of oxygen needed by green plants during night

Solution

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.

Hence, the correct answer is option: 'B'.

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