Brain Power
I. Multiple Choice. Choose the letter of the answer that best completes each state.


1. Earthquakes usually occur along
a. mountains. b. edges of plates
c. valleys d. middle of plates

2. The origin of an earthquake occurs deep in the earth. It is called
a.fault c. fold
b. epicenter d. focus

3. The damage done by an earthquake to the environment is described as
a. strength b. magnitude
c. intensity d. tremor

4. As P waves move through the earth's material, a. It moves the particles from side to side.
b. It swings and raises the particles.
c. It pushes and pulls the particles.
d. It presses and thickens the particles.

5. Folding and faulting of the earth's crust may result to any or all of the following EXCEPT a.earthquakes. b. lakes and rivers.
c. mountains and valleys. d. detachment of a plate part

6. In convergent boundaries, the force that acts between plates is
a. tension b. compression
c. sliding d. downward ​