3. How does temperature breakdown rocks? A. Rocks break when it is cooled.
B. Rocks break when it is heated.
C. Rocks break when it is not exposed to water.
D. Rocks break when it is heated and then cooled.
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Temperature changes can also contribute to mechanical weathering in a process called thermal stress. Changes in temperature cause rock to expand (with heat) and contract (with cold). As this happens over and over again, the structure of the rock weakens. Over time, it crumbles.

Explanation:

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