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earth science rocks
terms and definitions
Question | Answer |
---|---|
Epicenter | point on earth's surface directly above an earthquake focus. |
Fault | fracture that occurs when rocks break and that results in relative movements of opposing sides. |
Lava | molten rock flowing onto earth's surface. |
Lithosphere | ridged layer of the earth about 100 km thick crust and part of the upper mantle. |
Magnitude | a measure of energy released by an earthquake. |
Rifts | long cracks, fissure |