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When do rocks crack and shift?

User Xaddict
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2 Answers

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When the earths plates move or there is a earthquake. Hope I helped!
User Assaf Stone
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Rocks can crack when water is absorbed by them. Believe it or not, ice expands, so when you have water inside a rock, it will crack due to the frozen ice expanding inside of it. Hope I helped!
User Grmihel
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