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OpenStudy (anonymous):

Why is the coastal crossing theory of migration hard to prove or disprove?

OpenStudy (anonymous):

not sure give me a sec

OpenStudy (anonymous):

its C. Sea levels have lowered since the Ice Age. or D. The climate has remained the same since the Ice Age.

OpenStudy (anonymous):

nope C

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

yep

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