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Fundamentals of Physical Geography

2nd Edition
James Petersen
ISBN: 9781133606536

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BuyFindarrow_forward

Fundamentals of Physical Geography

2nd Edition
James Petersen
ISBN: 9781133606536
Textbook Problem

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FIGURE 8.18 This map shows the extensive areas of Canada and the northern United States that were covered by ice sheets and alpine glaciers. An ice-free corridor east of the western mountains allowed people to migrate southward after crossing a land bridge across the Bering Strait.

Why did the sea level drop enough for people to cross from Asia to North America on foot?

To determine

The reason for considering that the drop in sea level is enough for people to cross from Asia to North America on foot.

Explanation

When the glaciers lock up huge quantity of water then the sea level will be decreased. As a result, a wide stretch of the seafloor will be exposed...

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