What are plate tectonics?How are they caused?
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A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. ... By contrast, oceanic crust is composed of basaltic rocks, which are much denser and heavier.
The force that causes most of the plate movement is thermal convection, where heat from the Earth's interior causes currents of hot rising magma and cooler sinking magma to flow, moving the plates of the crust along with them. ... In ridge push and slab pull, gravity is acting on the plate to cause the movement.
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the land mass floating on water is called tectonic plates they were caused during continental drift
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