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| the outer layer of Earth made of solid rock |
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| the layer of rock beneath Earth's crust |
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| Earth's hottest layer, center of the Earth |
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| a rigid block of crust and upper mantle |
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| hot, soft rock from Earth's lower mantle |
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| an opening in Earth's crust through which lava flows |
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| shaking of the ground caused by the sudden release of energy in Earth's crust |
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| a place where pieces of Earth's crust move, edge of a plate |
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| the theory of how Earth's continents move over its surface |
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| "supercontinent" that contained all of Earth's land about 225 million years ago |
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| the remains or traces of past life found in Earth's crust |
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