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A high Biological Oxygen Demand (BOD) indicates that:
- a)Water is pure
- b)A high Biological Oxygen Demand (BOD) indicates that:a) Water is pure
- c)A high Biological Oxygen Demand (BOD) indicates that:a) Water is pureb) Absence of microbial actionC) Low level of microbial pollution
- d)High level of microbial pollution
Correct answer is option 'D'. Can you explain this answer?
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A high Biological Oxygen Demand (BOD) indicates that:a)Water is pureb)...
High Biological Oxygen Demand (BOD) indicates high level of microbial pollution
Biological Oxygen Demand (BOD) is a measure of the amount of dissolved oxygen that is needed by aerobic biological organisms to break down organic material in water. A high BOD level in water indicates that there is a high concentration of organic matter present, which in turn leads to an increase in microbial activity as microorganisms break down this organic matter.
Explanation:
- When there is a high level of microbial pollution in water, the microorganisms present will consume more oxygen as they break down the organic material. This results in a higher demand for oxygen in the water, leading to a high BOD level.
- High BOD levels can deplete the oxygen in water bodies, causing harm to aquatic organisms such as fish and other aquatic life. This can result in a decrease in biodiversity and overall water quality.
- Additionally, high BOD levels can also indicate the presence of pathogens and other harmful microorganisms in water, posing a risk to human health if the water is used for drinking or recreational purposes.
- Therefore, a high Biological Oxygen Demand (BOD) is a clear indicator of high levels of microbial pollution in water bodies, highlighting the importance of monitoring and managing BOD levels to protect water quality and ecosystem health.
Biological Oxygen Demand (BOD) is a measure of the amount of dissolved oxygen that is needed by aerobic biological organisms to break down organic material in water. A high BOD level in water indicates that there is a high concentration of organic matter present, which in turn leads to an increase in microbial activity as microorganisms break down this organic matter.
Explanation:
- When there is a high level of microbial pollution in water, the microorganisms present will consume more oxygen as they break down the organic material. This results in a higher demand for oxygen in the water, leading to a high BOD level.
- High BOD levels can deplete the oxygen in water bodies, causing harm to aquatic organisms such as fish and other aquatic life. This can result in a decrease in biodiversity and overall water quality.
- Additionally, high BOD levels can also indicate the presence of pathogens and other harmful microorganisms in water, posing a risk to human health if the water is used for drinking or recreational purposes.
- Therefore, a high Biological Oxygen Demand (BOD) is a clear indicator of high levels of microbial pollution in water bodies, highlighting the importance of monitoring and managing BOD levels to protect water quality and ecosystem health.
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