Across
- 5. continuous elevated zone on the floor of all major ocean basins
- 9. a boundary in which two plates move apart
- 10. a boundary in which two plates move together
Down
- 1. a boundary in which two plates slide past one another
- 2. two oceanic slabs converge
- 3. divergent boundaries that may cause landmass to split into two or more segments
- 4. hypothesis proposed by Harry Hess
- 6. continental crust collides with oceanic crust
- 7. elevated areas of sea floor characterized by high heat
- 8. a narrow, elongated depression of the seafloor