MULTIPLE CHOICE

Direction. Read and analyze the statement carefully. Choose the letter of the correct answer.

1. Which of the statements below DOES NOT explain the movements of the earth’s crust?

A. The mantle beneath the earth’s crust is believed to be a plastic material that has convection

currents.

B. Earthquakes that originate beneath the sea can produce tsunamis.

C. It seems that the earth’s crust has cracked into huge plates that move slowly due to the

convection currents in the mantle.

D. Many years of stress on a rock may fracture it, causing one portion to slide upward or

downward with respect to the other.

2. As rupture along a fault initiates, waves of energy travel outward from the hypocenter in a:

A. linear fashion B. a straight-line path C. a spherical fashion D. none of the above

3. Great earthquakes, those measuring 8.0 or higher on the Richter Scale, on average, occur

A. 500 or more times annually C. 10-20 times annually

B. 100-300 times annually D. once every 5 to 10 years

4. In the following illustration what do you call location (a)?

A. focus B. epicenter C. fault D. aftershock

5. Most earthquakes occur near or along the edges of the

A. North American plate C. Eurasian plate

B. Earth’s oceans and lakes D. Earth’s crustal plates

6. The San Andreas Fault zone has formed where the edge of the Pacific plate is slipping

A. under the North American plate C. south along the North American plate
B. over the North American plate D. north along the North American plate

7. Which of the following provides evidence for plate tectonics?

A. sea-floor topography C. ocean currents

B. Coriolis effect D. atmospheric temperatures

8. The convergence of two continental plates would produce

A. island arcs. B. rift valleys. C. folded mountains. D. trenches.

9. ________are defined as free falling fragments of rocks from steep cliffs or slopes.

A. Rockfalls B. Toppling C. Debris avalanche D. Earthflow

10. A force that acts on a rock to change its shape or volume is called

A. stress. B. folding. C. faulting. D. liquefaction.

11. Mountain formation is known as orogenesis. Mountains can be formed through:

A. folding B. faulting C. both A & B D. none of the above

12. Which stress force pulls on the crust and stretches rock?

A. shearing B. tension C. liquefaction D. compression

13. What process occurs when an earthquake’s shaking turns loose soil into mud?

A. deformation B. shearing C. liquefaction D. base-isolation

14. The type of stress force that produces a strike-slip fault is

A. compression. B. shearing. C. tension. D. liquefaction.

15. What type of fault forms when the hanging wall moves upward past the footwall?

A. normal fault C. strike-slip fault

B. fault-block mountain D. reverse fault

16. A surface or narrow zone along which one side has moved relative to the other is called a/an__.

A. Fault B. Fold C. Indentation D. Uplift

17. In which tectonic environment, can you find the surface expression in the form of folding?

A. Extensional B. Compressional C. Strike slip D. All of these

18. The San Andreas Fault is an example of:

A. Normal fault C. Right lateral strike slip

B. Reverse fault D. Left lateral strike slip

19. Which is the largest subduction earthquake?

A.1960 Chile earthquake C. 2011 Tohuku earthquake
B. 1905 Kangra earthquake D. 2004 Sumatra-Andaman earthquake

20. Surface along which the block of rock slips is called _____?

A. Fault zone B. Fault Plane C. Fault scarp D. None of these

pa help paki ayos ng sagot please yung matino na sagot​