Multiple-choice: Choose the one best answer.
1.
Which are fractures in a rock that are closely spaced and regular?
A. joints |
B. folds |
C. faults |
D. oblique slips |
For Questions 2–5, refer to the following block diagram.
2.
Which is the fold pictured in the diagram?
A. plunging anticline |
B. plunging syncline |
C. basin |
D. dome |
3.
What kind of fault is shown?
A. strike-slip fault |
B. reverse fault |
C. normal fault |
D. low-angle thrust fault |
4.
The hanging wall of the fault is on which side of the diagram?
A. north |
B. south |
C. east |
D. west |
5.
The fold and fault illustrated on the diagram were probably formed by which of the following?
A. compressional force only |
B. tensional force only |
C. compressional then tensional force |
D. tensional then compressional force |
6.
Which scale measures an earthquake's magnitude?
A. Mercalli |
B. Beaufort |
C. Richter |
D. Reduced Rupert |
7.
Which instrument measures Earthquake waves?
A. magnetometers |
B. gravimeters |
C. mass spectrometers |
D. seismometers |
8.
What is the geographic point on the Earth's surface that is directly above the point at which an earthquake begins?
A. focus |
B. epicenter |
C. strike |
D. dip |
9.
What type of margins are created when plates slide past each other?
A. convergent |
B. transform |
C. divergent |
D. normal |
10.
What is the driving force behind plate tectonics?
A. mid-ocean rift movement |
B. forces concentrated at the ridge axis |
C. convection in the mantle |
D. earthquake activity |
11.
Where is the largest continental rift in the world?
A. Southern California |
B. Germany |
C. East Africa |
D. South America |
12.
Which type of arc is the most apparent sign of a subduction zone and is also called a volcanic arc?
A. magmatic |
B. back |
C. island |
D. fore |
13.
Earthquakes do not occur at which type of margin?
A. transform |
B. divergent |
D. convergent |
14.
Which is the correct description of orogenesis?
A. the growth of mountain ranges as plates subduct |
B. the merging of a smaller plate with a larger continental mass |
C. the rising of ancient continental crust to the surface of the Earth |
D. the melting of crustal materials to form magma |
15.
Continents consist of what two major structural components?
A. shields and platforms |
B. mountain belts and cratons |
C. ocean basins and plates |
D. terranes and mantles |
10 years ago
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