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A bubble of gas released at the bottom...

A bubble of gas released at the bottom of a lake increases to four times its original volume when it reaches the surface. Assuming that atmospheric pressure is equivalent to the pressure exerted by a column of water 10 m high, what is the depth of the lake?

A

90m

B

40 m

C

10 m

D

70 m

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The correct Answer is:
d
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