6. crack on the earth's crust are known as a. Faults b. focus c. epicenter d. hypocenter
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6. crack on the earth's crust are known as a. Faults b. focus c. epicenter d. hypocenter
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Answer:
A.) Fault line/Tectonic plates
Explanation:
Earthquakes are usually caused when underground rock suddenly breaks and there is rapid motion along a fault. This sudden release of energy causes the seismic waves that make the ground shake. ... The earthquake starts at the focus, with slip continuing along the fault. The earthquake is over when the fault stops moving.