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An air bubble in a water tank rises from...

An air bubble in a water tank rises from the bottom to the top. Which of the following statements are true?

A

Bubble rises upwards because pressure at the bottom is less than that at the top.

B

Bubble rises upwards because pressure at the bottom is greater than that at the top.

C

As the bubble rises, its size increases

D

As the bubble rises, its size decreases

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The correct Answer is:
B, C
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