Physics
Which of the following pair is Incorrect?I. Parsec - DistanceII. Barrel - LiquidIII. Light year - Time

Only II
Only I and III
Only III
All are correct

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Physics
The wall of a dam is broader at the base

Because streamlining is required
To withstand pressure that increases in a horizontal plane
To withstand pressure that increases with depth
To withstand pressure that is increased with atmospheric pressure

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