The rock cycle refers to the process that describes how rocks change over long periods of time. Rocks form as a certain type and become other types of rocks as the geology around them changes. For example, a rock that is created from lava may become sedimentary as it is steadily eroded by water
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- How Does Plate Tectonics Affect the Rock Cycle?. Plate tectonics is the movement of the Earth's crust through convection currents that occur in the mantle.
- http://www.ehow.com/how-does_5410576_plate-tectonics-affect-rock-cycle.html
The Rock Cycle is a group of changes. Igneous rock can change into sedimentary rock or into metamorphic rock. Sedimentary rock can change into metamorphic rock or into igneous rock. Metamorphic rock can change into igneous or sedimentary rock.