The Newest Theories of Early Native Migration from Asia to the Americas

question 13

Multiple Choice

The newest theories of early native migration from Asia to the Americas include that:

• A)this migration came much earlier than previously thought.
• B)the Bering Land Bridge was the only avenue of migration.
• C)changes in Asia's climate drove natives to the Americas.
• D)the natives built advanced sailing vessels for long seagoing voyages.
• E)early Asian societies drove these natives out and ultimately they settled in the Americas.

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Definitions:

Subducting Lithosphere

The portion of the lithosphere that is being forced down into the mantle at a subduction zone.

Ridge Push

A tectonic process associated with the movement of the Earth's lithosphere, where an elevated ridge pushes an adjacent plate away due to gravitational forces.

Topographically High Ridge

An elongated area of high ground, usually sharper than a hill, often formed by tectonic processes or erosion.

Earth's Magnetic Field

The geomagnetic field that extends from the Earth's interior into space, where it meets the solar wind, a stream of charged particles emanating from the sun.