1. Describe how differences in density of Basaltic rock (found in oceanic crust) and Granitic rock (found in continental crust) helped form the World Ocean basins.
2. Explain how a profile of the Atlantic Ocean basin would differ from a profile of the Pacific Ocean basin. Provide details of topography.
3. Explain why continents are about twenty (20) times older than the oldest, ocean basins.
4. How can seamounts provide evidence of tectonic activity?