Download Plate Tectonics Study Guide Answer Section

Plate Tectonics Study Guide
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
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1. ____ currents inside Earth might drive plate motion.
a. Vertical
c. Horizontal
b. Convection
d. none of the above
2. The youngest rocks on the ocean floor are located ____.
a. near continents
c. far from mid-ocean ridges
b. at mid-ocean ridges
d. near Asia
3. The hypothesis that continents have slowly moved to their current locations is called ____.
a. continental drift
c. magnetic reversal
b. continental slope
d. convection
4. The crust and upper mantle make up Earth's ____.
a. lithosphere
c. core
b. asthenosphere
d. continents
5. Plates of the lithosphere float on the ____.
a. crust
c. core
b. asthenosphere
d. atmosphere
6. The presence of the same ____ on several continents supports the hypothesis of continental drift.
a. fossils
c. neither a nor b
b. water
d. both a and b
7. Plates slide past one another at ____.
a. subduction zones
c. convection currents
b. transform boundaries
d. divergent boundaries
8. The boundary between two plates moving together is called a ____.
a. divergent boundary
c. transform boundary
b. convergent boundary
d. lithosphere
9. Active volcanoes are most likely to form at ____.
a. transform boundaries
b. divergent boundaries
c. the center of continents
d. convergent oceanic–continental boundaries
10. The Great Rift Valley in Africa is a ____.
a. mid-ocean ridge
c. convergent boundary
b. divergent boundary
d. transform boundary
11. The alignment of iron minerals in rocks when they are formed reflects the fact that Earth's ____ has reversed
itself several times in the past.
a. magnetic field
c. asthenosphere
b. core
d. gravity
12. In order to complete a convection current, the rising material must eventually ____ Earth.
a. stop inside
c. sink back into
b. cool
d. warm
13. Seafloor spreading occurs because ____.
a. new material is being added to the asthenosphere
b. earthquakes break apart the ocean floor
c. sediments accumulate at the area of spreading
d. molten material beneath Earth's crust rises to the surface
____ 14. Plates move apart at ____ boundaries.
a. convergent
c. divergent
b. stable
d. transform
____ 15. The Andes mountain range of South America was formed at a ____.
a. convergent boundary
c. hot spot
b. divergent boundary
d. transform boundary
____ 16. The ____ is (are) an example of a transform boundary.
a. Appalachian Mountains
c. Mid-Atlantic Ridge
b. Himalaya
d. San Andreas Fault
Figure 10-1
____ 17. According to Figure 10-1, what type of plate boundary occurs between the North American Plate and the
Eurasian Plate?
a. transform boundary
b. divergent boundary
c. convergent oceanic-continental plate boundary
d. convergent oceanic-oceanic plate boundary
____ 18. According to Figure 10-1, what type of plate boundary occurs between the Nazca Plate and the South
American Plate?
a. convergent oceanic-continental plate boundary
b. convergent oceanic-oceanic plate boundary
c. convergent continental-continental plate boundary
d. transform boundary
Short Answer 4 pts each
19. How were the Andes mountain range, the Himalayas, and the Appalachian Mountains similarly formed?
Plate Tectonics Study Guide
Answer Section
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SHORT ANSWER
19. ANS:
They were all formed at convergent boundaries.
PTS: 1