About County Line Medical Associates County Line Medical Associates is a group practice with 1 location. Currently, County Line Medical Associates specializes in Internal Medicine with 1 physician. County Line Medical Associates Office Locations County Line Medical Associates
Best Answer: The Earth is made up of plates(continental or oceanic) that move becuase of the convection currents that occur in the mantle. As this plates move they drift apart(when crust is formed), collide(crust is destroyed) or pass by each other(causes friction generating faults or earthquaques).
Note: The crust includes the continents and the ocean bottom and is generally estimated to be about five to twenty-five miles thick.Note: The crust is made from relatively lightweight rocks that floated to the surface when the Earth was molten early in its history.