Multiple choice

How did the Ice Age make migration to the Americas possible?

  1. It increased the amount of food in North America

  2. It allowed people to travel in boats from Asia to N. America

  3. It encouraged people to leave the desert conditions in Asia

  4. It created a land bridge between Siberia and N. America
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

During the last Ice Age, vast amounts of water were locked up in glaciers, causing global sea levels to drop. This exposed a strip of land known as the Bering Land Bridge, connecting Siberia to modern-day Alaska and allowing humans to walk to the Americas.

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