The movement of earth's lithosphere is caused by convection within the layer of the earth.

Mantle layer

Explanation:

The convection of the mantle layer is when energy in the form of heat is transferred from the interior of the earth to the top of the planet, creating convection currents.

This convection in the mantle causes movements in the earth's tectonic plates, which are found in the lithosphere, so the movement of Eath's lithosphere is caused by convection within the mantle layer on the earth. This plate movements can cause earthquakes or volcanic eruptions.

newton's first law of motion

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