is made of earth's crust and upper mantle. It is subdivided into portions called (2) that move above the mantle. The two kinds of crust are (3) crust, which is thicker but less dense, and A (5) that the oceanic crust, which is thinner but (4) Earth's crust is made up of plates moving (6) and interact in various ways is Plate Tectonics. The interaction of the plates produces earthquakes, mountains, volcanoes, and other (7) features. (8) from the Earth's interior makes the plates move above the mantle. This movement causes the formation of three types of plate boundaries which are (9) boundary, two plates sliding each other; (10) boundary, two plates moving away from each other and convergent boundary which plates are moving (11) each other. Three types of convergent boundaries are (12) convergent boundary which forms volcanic island arc, (13) _ convergent boundary forming a continental volcanic arc, and (14) wherein there is no (15) convergent boundary​