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31 August, 21:50

Describe the land-bridge theory that scientists have developed to explain how people first came to the Americas.

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  1. 31 August, 22:07
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    Scientists believe that during the end of the Ice-Age, there was a land bridge connecting Asia and North America. They believed that the people followed animals across this bridge into Americas. Over time, the people spread into the continents. Later, the glaciers melted and the ocean level rose, covering the land that once had been the land bridge.
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