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what is the primary source of for the portion of the rock cycle that takes place below earth's surface?

User MPavesi
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The rock cycle is driven by two forces: (1) Earth's internal heat engine, which moves material around in the core and the mantle and leads to slow but significant changes within the crust, and (2) the hydrological cycle, which is the movement of water, ice, and air at the surface, and is powered by the sun.
User GangaRam Dewasi
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