Question:
Biochemical oxygen demand (BOD) in a river water
Biochemical oxygen demand (BOD) in a river water
Updated On: Jul 12, 2022
- has no relationship with concentration of oxygen in the water
- gives a measure of Salmonella in the water
- increases when sewage gets mixed with river water
- remains unchanged when algal bloom occurs
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Biochemical oxygen demand (BOD) is the amount of oxygen taken up by microorganisms that decompose organic waste matter in water. It is therefore used as a measure of the amount of certain types of organic pollutant in water.
Was this answer helpful?
0
0
Top Questions on Environmental Issues
- Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early treatment?
- NEET (UG) - 2023
- Biology
- Environmental Issues
- Four students were assigned a science project to find out the pollution levels of lakes in their surrounding. After analysing the quality of water samples, the BOD values were found as follows :
Which among the following water samples is highly polluted ?- KCET - 2023
- Biology
- Environmental Issues
- Which of the following statements is correct?
- NEET (UG) - 2023
- Biology
- Environmental Issues
- Which one of the following statements is NOT correct?
- NEET (UG) - 2023
- Biology
- Environmental Issues
- The thickness of ozone in a column of air in the atmosphere is measured in terms of:
- NEET (UG) - 2023
- Biology
- Environmental Issues
View More Questions
Questions Asked in AIPMT exam
- The terga, sterna and pleura of cockroach body are joined by
- AIPMT - 2015
- Cockroach
- Three identical spherical shells, each of mass m and radius r are placed as shown in figure. Consider an axis X X' which is touching to two shells and passing through diameter of third shell. Moment of inertia of the system consisting of these three spherical shells about XX' axis is
- AIPMT - 2015
- Moment Of Inertia
- The species $ {Ar, K^+}$ and $ {Ca^{2+}}$ contain the same number of electrons. In which order do their radii increase?
- AIPMT - 2015
- properties of d block elements
- The hilum is a scar on the
- AIPMT - 2015
- Post-Fertilisation : Structures And Events
- The heat of combustion of carbon to $ {CO_2}$ is $ {- 393.5 \, kJ/mol}$. The heat released upon formation of 35.2 g of $ {CO_2}$ from carbon and oxygen gas is:
- AIPMT - 2015
- Enthalpy change
View More Questions