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Rocks come from a cycle we call the rock cycle, it starts off as magma, as this cools, igneous rocks are made. Weathering and erosion causes igneous rocks to turn into sediments which forms into sedimentary through compaction. Heat and pressure causes sedimentary rocks to turn into metamorphic rocks which then gets melted back into magma. This goes in a circle which never ends, so rocks are being formed all the time.

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12y ago

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