Ch 11 Quiz
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. The oldest layer of an anticline fold is located
a. on an incline.
c. in the center of the fold.
b. within a syncline.
d. on the bottom of the fold.
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2. Isostatic adjustments occur in
a. the ionosphere.
b. the atmosphere.
c. the lithosphere.
d. volcanoes.
3. The asthenosphere is
a. in the lithosphere.
b. in the core.
c. in the mantle.
d. in the stratosphere.
____
____
4. What is isostasy?
a. gravitational and buoyant incongruity between the asthenosphere and the lithosphere
b. gravitational and buoyant equilibrium between the asthenosphere and the lithosphere
c. buoyancy in the asthenosphere overcomes gravity in the lithosphere
d. gravity and buoyancy cause the atmosphere to rise
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5. Which of the following describes a fracture?
a. a break in rock where one block slides relative to another
b. rock that bends rather than breaks
c. a break in rock that can not be repaired
d. a break in rock where there is no movement of surrounding rock
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6. Folded mountains form
a. when a state of isostasy occurs.
b. when continents collide.
c. when continents diverge.
d. after huge earthquakes.
____
7. When the oceanic and continental lithospheres collide,
a. the oceanic plate subducts.
c. their momentum stops each other.
b. the continental plate subducts.
d. they reach isostasy.
____
8. What happens when two oceanic plates collide?
a. The denser plate fractures.
c. The less dense plate subducts.
b. The less dense plate fractures.
d. The denser plate subducts.
____
9. What happens when two continental plates collide?
a. Large mountains can form.
c. The plates subduct beneath each other.
b. Dome mountains are likely to form.
d. The impact can cause huge earthquakes.
____ 10. The type of stress that squeezes and shortens a body is
a. compression.
c. shear stress.
b. tension.
d. deposition.
____ 11. What is subduction?
a. one plate collides with another
b. one plate destroys another
c. one plate goes beneath another
d. one plate divides another
____ 12. What is the term for the amount of force that changes the shape and volume of rock?
a. strain
c. compression
b. stress
d. hypertension
____ 13. The same stresses that form folded mountains also form
a. trenches.
c. valleys.
b. grabens.
d. plateaus.
____ 14. What type of mountain is most likely to form when plates with edges that have oceanic lithosphere collide?
a. folded mountain
c. fault-block mountain
b. volcanic mountain
d. domed mountain
____ 15. A fold where the youngest rock layer is in the center is called a(n)
a. monocline.
c. syncline.
b. decline.
d. anticline.
____ 16. How does a reverse fault occur?
a. The hanging wall moves upward relative to the footwall.
b. Compression thrusts the fault into reverse.
c. Blocks slide past each other.
d. The hanging wall moves downward relative to the footwall.
____ 17. What force pulls on the lithosphere in an isostatic adjustment?
a. buoyancy
c. compression
b. magnetism
d. gravity
____ 18. Materials that respond to stress by bending or deforming without breaking are
a. ductile.
c. faulted.
b. brittle.
d. isostatic.
____ 19. What happens when oceanic and continental plates collide?
a. The asthenosphere and the lithosphere are disrupted.
b. The continental lithosphere subducts beneath the oceanic lithosphere.
c. Mountains can be created through uplift and volcanic eruptions.
d. Valleys are created by the excessive energy release.
____ 20. The type of stress that distorts a body by pushing parts of the body in opposite directions is
a. shear stress.
c. compression.
b. tension.
d. isostacy.