6. It is an occasion within the earth's crust along which significant movement has taken place.
a. dip
b.epicenter
c. fault
d.tsunami
7. When does an earthquake occurs?
a.When rocks along a fault suddenly move
c. When two big vehicles collide
b. When a building collapse near the river bank
d. When great flood occurs
8. What do you call the vibrations or tremors produced within the earth's outer layer or crust?
d. tsunami
earthquake
b. epicenter
9. Which of the following factors makes the rocks move which formed an opening called focus?
d. wave
earthquake
c. vibration
b. pressure
10. Which determinant holds the rocks from gliding through each other?
The movements of rocks.
c. The bending of rocks.
b. The roughness of the rocks.
d. The pattern of rocks.
11. What appears when seismic waves move farther into the crust?
a. seismic waves cease
c. seismic waves remain constant
b. seismic waves reduce
d. seismic waves rush up
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