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There are three main sources of heat in the deep earth: (1) heat from when the planet formed and accreted, which has not yet been lost; (2) frictional heating, caused by denser core material sinking to the center of the planet; and (3) heat from the decay of radioactive elements.
Explanation:
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Over time, pressure continues to build in the tectonic plates, until suddenly, they shift in an earthquake. Aftershocks are common, but then a long time can pass before another one becomes likely.
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Explanation:
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its 117 times greater then the moon
global winds, the Coriolis effect, and continental deflections