Environment & Ecology · Environmental Science
A water sample exhibits a high Chemical Oxygen Demand (COD) but a low Biochemical Oxygen Demand (BOD). This indicates:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Absence of organic pollutants
- 2Presence of non-biodegradable pollutants✓
- 3High levels of dissolved oxygen
- 4Presence of highly biodegradable organic matter
Correct answer
Presence of non-biodegradable pollutants
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