(1)___________________ is made of Earth crust and upper mantle. It is divided into portion called (2)________
that move above the mantle. The two kinds of crust are (3)_____________crust which is thicker but less
dense, and oceanic crust, which is thinner but (4)______________. A (5)_____________ that the 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 from each other; (10)_________________ boundary, two plates moving away from each
other and convergent boundary which plate are moving (11)_____________ each other. Three types of
convergent boundaries which forms volcanic island arc (12)________________convergent boundary
forming a continental arc, and (14)__________________ convergent boundary wherein there is no
(15)_________________.