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OpenStudy (anonymous):
What does an unconformity in a sequence of rock layers reveal about geologic history? A. A rock layer must have turned upside down. B. A layer of rock might have eroded. C. The layers must cover hundreds of square miles. D. The layers must have been deposited very quickly.
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OpenStudy (anonymous):
@Loveheart
OpenStudy (anonymous):
@31356
OpenStudy (anonymous):
@paki
OpenStudy (anonymous):
@sammixboo
OpenStudy (anonymous):
@EclipsedStar
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OpenStudy (anonymous):
B. A layer of rock might have eroded.
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