How do the differences between oceanic and continental crust lead to the presence of ocean basins and continents?

Oceanic crust is generally thinner, denser, and primarily composed of basalt, while continental crust is thicker, less dense, and mostly made of granite. These differences result in oceanic crust sinking lower into the mantle, forming ocean basins, whereas the buoyant continental crust rises to create landmasses. Additionally, tectonic processes, such as subduction and rifting, further shape the distribution of ocean basins and continents over geological time.