Q. How is the amount of biodegradable organic matter in sewage water estimated?
- Chemical Oxygen Demand
- Physical Oxygen Demand
- Biological Oxygen Demand
- Mathematical Oxygen Demand
Answer: Biological Oxygen Demand
Take Mock Tests
| Government Schemes Mock Test | Start Test! |
| Political Science Mock Test – 42 | Start Test |
| History Test – 190 | Start Test |
| Quantitative Aptitude Test | Start Test! | Data Interpretation - Mock Test | Start Test! |
| General Awareness - Mock Test | Start Test! |
| Reasoning Ability - Mock Test | Start Test! |
We will be happy to hear your thoughts