Discussion
High Biological Oxygen Demand (BOD) in water indicates :
Answer: A
High BOD indicates the presence of organic matter and polluted water.
Biological Oxygen Demand is the amount of dissolved oxygen used by micro-organisms to decompose the organic matter in water. The more biodegradable organic waste, such as sewage, the more oxygen they consume, so a high BOD means heavy organic pollution.
Clean water and rainwater have low BOD. Insoluble substances that are not biodegradable do not raise BOD.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development