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| Vibrations that travel through Earth carrying the energy released during an earthquake. |
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| The force exerted on a surface divided by the area over which the force is exerted. |
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| The layer of rock that forms Earth’s outer surface. |
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| A dark, dense igneous rock with a fine texture, found in oceanic crust. |
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| A usually light-colored igneous rock that is found in continental crust. |
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| The layer of hot, solid material between Earth’s crust and core. |
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| A rigid layer made up of the uppermost part of the mantle and the crust. |
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| The soft layer of the mantle on which the lithosphere floats. |
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| A layer of molten iron and nickel that surrounds the inner core of Earth. |
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| A dense sphere of solid iron and nickel at the center of Earth. |
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