Question

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

• A. Biodegradable organic matter only
• B. Biodegradable and non-biodegradable organic matter
• C. Non- Biodegradable organicmatter
• D. inorganic matter

Answer 1

Answer:

B. Biodegradable and non-biodegradable organic matter