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Question
Relationship between DO and BOD is that they
Relationship between DO and BOD is that they
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Solution
The correct option is B Are inversely proportional
Dissolved Oxygen (DO) is the amount of oxygen dissolved in the water system. It is measured in ppm. Biochemical oxygen demand (BOD, also called biological oxygen demand) is the amount of dissolved oxygen needed (i.e., demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period. The BOD of the natural water system is about 4 ppm. The importance of DO is significant as it supports the aquatic life within the system if the amount of DO is to low then the life will begin to die and cause bacteria to evolve to decompose the dead matter and this will further use the DO. Therefore it is important to monitor the amount of DO in the water and also the BOD so it will not deplete the oxygen levels to a low and cause the system to become unhealthy and unsupportable to sustain life. So, the correct answer is option B.
Dissolved Oxygen (DO) is the amount of oxygen dissolved in the water system. It is measured in ppm. Biochemical oxygen demand (BOD, also called biological oxygen demand) is the amount of dissolved oxygen needed (i.e., demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period. The BOD of the natural water system is about 4 ppm. The importance of DO is significant as it supports the aquatic life within the system if the amount of DO is to low then the life will begin to die and cause bacteria to evolve to decompose the dead matter and this will further use the DO. Therefore it is important to monitor the amount of DO in the water and also the BOD so it will not deplete the oxygen levels to a low and cause the system to become unhealthy and unsupportable to sustain life. So, the correct answer is option B.
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