It Is Believed That Humans Acquired Language About __________ Years

question 70

Multiple Choice

It is believed that humans acquired language about __________ years ago.

• A)2,000,000
• B)1,000,000
• C)500,000
• D)100,000

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Definitions:

Strike

The direction of a horizontal line on an inclined surface.

Dip

The angle that a layer or structural surface makes with the horizontal, measured perpendicular to the strike.

Fault

A crack in the Earth's crust resulting from the movement of rock on either side of the crack, which can lead to earthquakes.

Tectonics

The study of the Earth's crust and mantle involving the processes that structure the Earth's surface, including the formation of mountains, continents, and oceans.