Across
- 4. / a theory that states that all of the continents were one joined together in a sinle large landmass
- 5. / a valley made of rifts
- 6. / means slding past each other
- 9. / a theory that continents sit and move on crust beneath the surface
- 10. / found at the top of the upper mantle
Down
- 1. / when two tectonic plates collide and one subducts
- 2. / about 245 mya the continents were once joined together as one single landmass. what is the name of the landmass?
- 3. / means moving apart
- 7. / a plastic like layer found underneath the lithosphere
- 8. / large cracks in the crust