Telangana PSC Group 1 Prelims 2023 Paper
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Question : 141 of 150
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Consider the following statements :
A. BOD is oxygen consumed by micro-organisms and is an index of water pollution.
B. Drinking water should have BOD level of 1 to 2 ppm.
Which of the above statements is/are correct?
A. BOD is oxygen consumed by micro-organisms and is an index of water pollution.
B. Drinking water should have BOD level of 1 to 2 ppm.
Which of the above statements is/are correct?
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