What happens to Earth’s crust when geologic blocks first become stuck together by friction?
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B. |
C. |
D. |
What is the focus?
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B. |
C. |
D. |
What primarily determines how much seismic energy is released during an earthquake?
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B. |
C. |
D. |
Which of the following is an accurate description of seismic waves?
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B. |
C. |
D. |