Plate Tectonics Has Caused Many Unidirectional Changes Over the Earth's

question 10

Multiple Choice

Plate tectonics has caused many unidirectional changes over the Earth's history.Which of the following best describes why plate tectonics still continues to occur on our planet?

• A) An internal heat source has kept the asthenosphere weak enough to flow.
• B) Solar radiation warms the atmosphere and hydrosphere.
• C) Meteorite impacts add heat and mass to our planet.
• D) The magnetic field created by the Earth's core moves lithospheric plates.

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