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It is known that wax contracts on solidi...

It is known that wax contracts on solidification. If molten wax is taken in a large vessel and it is allowed to cool slowly, then

A

it will start solidifying from the top to downward.

B

it will start solidifying from the bottom lo upward.

C

it will start solidifying from the middle, upward and downward at equal rates.

D

the whole mass will solidify simultaneously.

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