Pl asap will give ! the theory of plate tectonics states that the earth’s surface is divided into large sections called there are two basic types of plates: plates, which are thin and dense, and plates, which are thicker and less dense. the plates move around the surface of the earth due to currents that originate deep in the plates come into contact with each other in three basic ways: they move toward each other (at boundaries), away from each other (at boundaries), or slide along beside each other (at boundaries). what occurs at the boundary of the plates depends upon the type of plate involved as well as the type of boundary. how does the density of tectonic plates affect their behavior when two plates come into contact with each other? answer if you know the right answer