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Unit 4 Lesson 5 Earthquakes

Unit 4 Lesson 5 Earthquakes

Unit 4 Lesson 5 Earthquakes. Unit 4 Lesson 5 Earthquakes. Let’s Focus. What is an earthquake?. Earthquakes are ground movements that occur when blocks of rock in Earth move suddenly and release energy. The energy is released as seismic waves that cause the ground to move.

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