(11)
19) As water is heated by the sun, it becomes less
dense and rises. What causes the decrease in the
density of warming water?
A. The water particles move faster, causing the
water to expand.
B. The water particles move slower, causing the
water to expand.
C. The water particles move faster, causing the
water to contract.
D. The water particles move slower, causing the
water to contract,
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