Question

why do plate bounderies move

Answer 1

Answer:

The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth's mantle and fit snugly against one another. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other.

Explanation:

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Answer 2

Answer:

The heat from radioactive within the planets interior causes the plates to move.