What is the tectonic cycle?
as the plates become heavier with mountains and such, they sink slowly into th mantle where there is enormous pressure. as th mantle burns th underside of th plate, th plate becomes lighter; allowing th mantles great heat output 2lift th plate again
Earth definitely does. Possibly Venus and Mars have (or have had) a rock cycle of some sort, too. However, Venus and Mars lack liquid water and tectonic plates, which are important in Earth's rock cycle. On Earth, the rock types involved in the cycle are igneous (of volcanic origin), sedimentary and metamorphic.
Three processes that contribute to the motion of tectonic plates are convection currents, ridge push, and slab pull. Convection currents is when the mantle rises, cools, sinks and heats, then rises and repeats the cycle. Ridge push is a gravitational force that causes a plate to move. Slab pull is the movement of tectonic plate lithosphere due to convection currents in the asthenosphere.
Heat from the earth's core, via the magma drives the tectonic part of the rock cycle. This heat is derived mainly from radioactive fission of the heavy elements in the Core. Gravity drives much of the weathering part of the rock cycle. Via evaporation of water, and rain and rivers, and glaciation. Some solar radiation also energizes part of the weathering part of the rock cycle.