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Social Sciences 6 Online
OpenStudy (amirahlovespink):

will fan!!!!!! 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.

OpenStudy (anonymous):

B.

OpenStudy (anonymous):

b I took the test

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