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How does the flow of energy as heat in earths interior contribute to the movement of tectonic plates? Explain what would happen if earth were not a convecting system?

Rocks, water, and air—indeed, most materials—expand and thus become less ... that led to the formation of Earth's core) contributes 20 to 50% of the heat. ... Mantle convection is the main way heat from Earth's interior is transported to ... tectonic plate movement would also stop including earthquakes and volcanic activity.

Explanation:

the answer is b. apsidal precession