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The Rock Cycle & Classification of Rocks
The rock cycle is the formation, breakdown and reformation of a rock as a result of sedimentary, igneous, and metamorphic processes. The rock cycle is an illustration that is used to describe how the three rock types are related and how Earth processes change a rock from one type to another over time. Each group contains a collection of rock types that differ from each other on the basis of the size, shape and arrangement of mineral grains. Due to the driving forces of the rock cycle, plate tectonics and the water cycle, rocks are forced to change as they encounter new environments as they do not remain in equilibrium.
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