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Environmental Issues — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYEnvironmental Issues3 Marks
Question
Bring out the relation between BOD, microorganisms and the quantity of biodegradable organic matter.
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Answer

  • BOD is the amount of oxygen required by the decomposer micro-organisms for decomposing the organic matter in the water.
  • Higher the BOD, higher is the quantity of organic matter in the water body.
  • If more organic matter is there, the microbes also flourish in the water body and increase their number.

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