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Heat escaping from the earth's interior, is driving convection currents in the earth's mantle that move the crustal plates

Another place this is happening: Titan, one of the moons of Saturn

Plate tectonics: The main features are:

The Earth's surface is made up of a series of large plates (like pieces of a giant jigsaw puzzle).

These plates are in constant motion travelling at a few centimetres per year.

The ocean floors are continually moving, spreading from the centre and sinking at the edges.

Convection currents beneath the plates move the plates in different directions.

The source of heat driving the convection currents is radioactive decay which is happening deep in the Earth.

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I hope this is helpful.

earths crust (plates) are floating on a semi Liquid core that is spinning at a different rate of speed