Chemical oxygen demand(COD)of a sample is always greater than Biochemical Oxygen Demand(BOD)since it represents:

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Chemical oxygen demand(COD)of a sample is always greater than Biochemical Oxygen Demand(BOD)since it represents:

ABiodegradable organic matter only

BBiodegradable and non-biodegradable organic matter

CNon- Biodegradable organicmatter

Dinorganic matter

Answer:

B. Biodegradable and non-biodegradable organic matter

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