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Biodiversity, Conservation and Environmental Issues — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYBiodiversity, Conservation and Environmental Issues1 Mark
MCQ
When there are excessive microorganisms in the water that cause biodegradation there is
  • A
    sharp rise in the dissolved oxygen content
  • ✓
    sharp decline of dissolved oxygen content
  • C
    refreshing odour to the water
  • D
    loss of algal population
✓

Answer

Correct option: B.
sharp decline of dissolved oxygen content
sharp decline of dissolved oxygen content

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