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4 September, 23:37

On a hot day, the sun causes the sidewalk to become very warm. How do the particles that make up the sidewalk change as the temperature increases?

A:They move closer together.

B:They move freely from place to place.

C:Their kinetic energy decreases.

D:They move faster.

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  1. 4 September, 23:54
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    D. They move faster
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