Water filled in two glasses A and B have BOD values of 10 and 20, respectively. The correct statement regarding them, is:
A
A is more polluted than B
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B
A is suitable for drinking whereas B is not
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C
B is more polluted than A
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D
Both A and B are suitable for drinking
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Solution
The correct option is C B is more polluted than A Two glasses "A" and "B" have BOD values 10 and '20', respectively.
Hence glasses "B" is more polluted than glasses "A".