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Earth Sciences 20 Online
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.

OpenStudy (anonymous):

@truwhovian11

OpenStudy (anonymous):

:)

OpenStudy (truwhovian11):

i believe its d

OpenStudy (anonymous):

Ok thanks

OpenStudy (truwhovian11):

ur welcome

OpenStudy (truwhovian11):

thx

OpenStudy (anonymous):

:D

OpenStudy (anonymous):

I got a 0

OpenStudy (truwhovian11):

oh srry

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