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1. What Is The Ultimate Cause Of Movement Within The Earth's Crust

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1. What Is The Ultimate Cause Of Movement Within The Earth's Crust
1. What is the ultimate cause of movement within the earth's crust?
ANSWERS: Radioactive decay generates the heat energy that powers movements of plates.

2. What causes earthquakes?
ANSWERS: Friction between the rough edges of slowly moving segments or plates of the earth’s lithosphere result in a series of jerky starts and stops which is the direct cause of most earthquakes.

3. What is a fault?
ANSWERS: Faults are fractures in rocks along which displacement has taken place

4. What happens to the energy released during an earthquake?
ANSWERS: Energy fractures the rock forming a plane of slip called a fault, along which future earthquakes can also occur.

It can also give off seismic waves.

5. Describe how
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