Multiple choice

Which theory describes the motion of and force driving Earth's plates?

  1. first law of motion

  2. continental drift

  3. Because Mrs. Hilliard said so.

  4. plate tectonics
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The theory of plate tectonics explains the structure of the Earth's lithosphere and the forces, such as convection currents in the mantle, that drive the movement of tectonic plates. Continental drift was the historical predecessor that lacked a mechanism for how the plates moved.

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