The first __1__ arrived in North America around __2__ to __3__ years ago during the Ice Age. They crossed the Beringia __4__ bridge between __5__ of North America and Siberia of __6__.
When these people came to __7__ they had to __8__ to the __9__, and they had to __10__ how to use the natural resources __11__ to them.
The first humans arrived in North America around 10,000 to 20,000 years ago during the Ice Age. They crossed the Beringia land bridge between Alaska of North America and Siberia of Asia.
When these people came to America they had to adapt to the environment, and they had to learn how to use the natural resources available to them.