A Week Is the Time Needed for

question 38

Multiple Choice

A week is the time needed for

• A) the sun to drift completely around the sky.
• B) the moon to drift completely around the sky.
• C) the earth to turn completely on its axis.
• D) None of the choices are correct.

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Definitions:

Oceanic Lithosphere

The rigid outer layer of the Earth under the ocean basins, composed of the crust and upper mantle that is specifically associated with oceanic regions.

Ridge Push

A tectonic process driven by gravitational forces that cause the spreading of the seafloor away from oceanic ridges.

Asthenosphere

A region of the Earth's mantle lying below the lithosphere, characterized by relatively low viscosity and mechanical weakness.

Lithosphere

The hard external layer of Earth, made up of the crust and the top section of the mantle.