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johnnyappleseed johnnyappleseed
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A year ago

The Great Ice Age accounted for the origins of North America's human history because



it exposed a land bridge connecting Eurasia with North America.



the glacial withdrawal allowed migration from South America.



the glacial withdrawal formed freshwater lakes that supported life.



when it ended, European migration to the west became possible.



it prevented the migration of dangerous animals from the Bering isthmus.

Textbook 
American Pageant

American Pageant


Edition: 16th
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dm408dm408
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A year ago
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