Why Earth has a supercontinent cycle

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It’s been estimated that in all of Earth’s history, there have been 7 supercontinents, with the most recent one being Pangaea.

The next supercontinent (Pangaea Ultima) is expected to form in around 250 million years.

Why is this the case? What phenomenon causes these giant landmasses to coalesce, break apart, then coalesce again?

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Anonymous 0 Comments

Because the earth is a sphere and things can only get so far apart before any further movement apart just makes them closer together in the opposite hemisphere.

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