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As a part of project work, a group of students collected water samples from different locations. Water samples and its BOD contents are given below.1. Analyse the data given below and find out the sample which is highly polluted. 2. Give reason. Expand BOD.SampleBODA20%B12%C8.5%D8% |
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Answer» 1. Sample A is highly polluted. 2. BOD (Biochemical Oxygen demand).- refers to the amount of O2 that is consumed when organic matter is oxidised by bacteria. If greater the BOD of water, the rate of pollution is high. |
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