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In short, the rock cycle is the name for the processes that forms and recycles the different types or rocks on our planet. Rocks begin the cycle as igneous rocks, erode into sedimentary rocks then change into metamorphic rocks, finally the rocks melt back to magma and start the process again.
The rock cycle is the transformation of one type of rock to another through heat, pressure, weathering and erosion. First proposed by James Hutton in the late 18th century, the cycle is an ongoing... The rock cycle is the transformation of one type of rock to another through heat, pressure, weathering and erosion.