Ravi used a pump to add more air into a basketball that was already full. He noticed that the size of the ball remained the same, but its mass increased. What does this show?
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Worked Solution
Step 1: Adding air increased mass (Air has mass).
Step 2: The size (volume) stayed the same despite more air (Air is compressible).
Step 3: Both observations are supported.
Correct answer: Both (2) and (3)
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