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Primary 4 | Science
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Why is the answer 2?
B: as the ping pong ball is pushed into the water, the water level will increase. thus B is correct
C: from A, the ping pong ball goes back to its original shape, which is larger than the shape when it is dented. Thus, the volume inside the ping pong ball increases, and C is correct
D: there is no gain or lost in water, thus the volume of water does not change. thus D is wrong.
therefore the answer is 2
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