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Land masses move when their underlying plates move simply because they are resting on top of the plates. This is similar to how if someone is resting on a raft the current of the water will carry them along.

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9y ago
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15y ago

Land masses move by ocean floor-spreading, which is the process in which the underwater volcanoes at rift zones make new ocean floor causing the old ocean floor to sub-duct in a trench.

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13y ago

continental drift or better, the theory of plate tectonics

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13y ago

Plate movement.

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Q: What is it called when land masses move on the earth surface?
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