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Question
A river with high BOD value is______.
A river with high BOD value is______.
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Solution
The correct option is C Highly polluted
Biological Oxygen Demand (BOD) is a measure of the oxygen used by microorganism to decompose the waste. The river which has high level of BOD is indicative of high pollution in the river as the dissolved oxygen available in the water is being used by the bacterias, and this result in less oxygen available to fish and other aquatic beings. Nitrates and phosphates contribute to high level of BOD.
Biological Oxygen Demand (BOD) is a measure of the oxygen used by microorganism to decompose the waste. The river which has high level of BOD is indicative of high pollution in the river as the dissolved oxygen available in the water is being used by the bacterias, and this result in less oxygen available to fish and other aquatic beings. Nitrates and phosphates contribute to high level of BOD.
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