Unformatted text preview: each other. At a convergent boundary, two plates move toward each other, and at a transform boundary, they slide horizontally past each other. The forces generated at a plate boundary build mountain rangers and cause volcanic eruptions and earthquakes. 14.) The interior can be viewed as an enormous heat engine that needs to move heat from the core to the cooler surface. The lithosphere becomes denser as it moves away from a spreading center and cools. It can no longer float on the asthenosphere and sinks into the mantle in a subduction zone, dragging the trailing portion of the plate over the asthenosphere....
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- Fall '08
- Plate Tectonics, continental crust, oceanic crust, 40 kilometers, plate boundary build, 7 kilometers