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Unit C, Ch. 1 L. 2
What causes mountains, volcanoes, and earthquakes?
Question | Answer |
---|---|
crust | the thin, outer layer of Earth |
mantle | the layer of rock beneath Earth’s crust |
core | the center of the Earth |
plate | a rigid block of crust and upper mantle rock |
magma | molten rock from earth’s mantle |
volcano | a mountain formed by lava and ash |
earthquake | a shaking of the ground caused by the sudden release of energy in Earth’s crust |
fault | a break or place where pieces of Earth’s crust move |