Q: What does convection within the earth's mantel cause?


Read this paragraph and choose the correct option from the provided answers:

Convection within the Earth’s mantle causes the plates to move. Mantle material is heated above the core. The hot mantle rises up towards the surface ( Figure below ). As the mantle rises it cools. At the surface the material moves horizontally away from a mid-ocean ridge crest. The material continues to cool. It sinks back down into the mantle at a deep sea trench. The material sinks back down to the core. It moves horizontally again, completing a convection cell.

 Choices:

- volcanos

- hurricanes

- microorganisms to move

- plates to move


A:
plates to move