Environment & Ecology · Environmental Studies
An abnormally high value of Biochemical Oxygen Demand (BOD) in a water body indicates that:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Aquatic life is thriving optimally
- 2The concentration of dissolved oxygen is exceptionally high
- 3The water body is fully safe for drinking
- 4The water is heavily contaminated with organic sewage✓
Correct answer
The water is heavily contaminated with organic sewage
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