Answer the following question given this paragraph: 

Plates move for two reasons. Upwelling mantle at the mid-ocean ridge pushes plates outward. Cold lithosphere sinking into the mantle at a subduction zone pulls the rest of the plate down with it.


Q: Upwelling mantle at the mid-ocean ridge pushes plates in which direction?

 Choices:

- eastward

- inward

- westward

- outward

A:
outward
