MCQOPTIONS
Saved Bookmarks
| 1. |
What does Chemical Oxygen Demand (COD) indicate? |
| A. | Biodegradability of the waste water |
| B. | Strength of a sewage |
| C. | Age of the sewage |
| D. | Potential for recycling of the wastewater |
| Answer» B. Strength of a sewage | |