Answer:
Paleo-Indians probably entered North America by crossing a land bridge spanning the Bering Strait.
Explanation:
The Bering Strait is the portion of water that is located in the middle of the extreme east of Asia and the extreme west of North America, dividing both continents into a strait of approximately 80 km. Its location is strategic in geopolitical terms, because it is the closest point between the United States and Russia, two of the largest world superpowers of the last century.
During the last ice age, approximately 15,000 years ago, the Bering Strait was frozen, being called Beringia. In this historical period, the first humans to reach America crossed from Asia to Alaska, from where they began to expand south.
