1. The rocks of the continental crust are largely compesd of: a. Mafic minerals,

ID: 77632 • Letter: 1

Question

1. The rocks of the continental crust are largely compesd of:

a. Mafic minerals, denser than the minerals that make up the ocean crust

b. Basalt

c. Felsic minerals, less denser than those of the oceanic crust and upper mantle

d. Iron e. Iron and nickel

2. The two major types of tectonic movement(or force) that result in distinctive landforms and faulting types are

a. Convergence and divergence( or rifting)

b. Subduction and lithification

c. Upthrow and downthrow

d. Gradation and erosion

3. The continental crust of the lithosphere is_______ than the oceanic crust.

a. Denser and thicker

b. Wider and lighter

c. Lighter ad thicker

d. Not different in density

4. The theory of plate tectonics and continental drift says that the lithospheric plates are floating in earth's:

a. Molten outer core

b. Upper solid mantle

c. Asthenosphere

d. Stratosphere