Question

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 $B$
• B. $A$ is suitable for drinking, whereas $B$ is not
• C. $B$ is more polluted than $A$
• D. Both $A$ and $B$ are suitable for drinking

Answer 1

Answer: (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 "$A$".