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Environmental Issues — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYEnvironmental Issues1 Mark
MCQ
Sewage drained into water bodies kill fishes because:
  • A
    Excessive carbon dioxide is added to water.
  • B
    It gives off a bad smell.
  • C
    It removes the food eaten by fish.
  • ✓
    It increases competition with fishes for dissolved oxygen.
✓

Answer

Correct option: D.
It increases competition with fishes for dissolved oxygen.

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