Across
- 2. unevenly heats the asthenosphere
- 4. the denser of the crusts that covers tectonic plates
- 6. subduction movement
- 7. divergent boundaries slide past each other and can do this
- 8. tectonic plate are large pieces or these
Down
- 1. includes frozen water at the polar ice caps
- 3. the layer of Earth composed of magma
- 5. crust that covers tectonic plates, less dense than its friend