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Answer the following questions.
(i) Why do the plates move?
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One explanation for the movement of the Earth's crustal plates is believed to be convection currents which occur in the semi-molten mantle. These convection currents are created by heat from within the earth – much of which is generated by radioactive
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Why do plates move? The main driving force of plate techtonics is gravity. If a plate with oceanic lithosphere meets another plate, the dense oceanic lithosphere dives beneath the other plate and sinks into the mantle. This process is called subduction.
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