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Unformatted text preview: 4. The rift valley of a mid-ocean ridge is equated with which of the following plate boundary types? a. transitional b. divergent c. convergent d. transform fault 5. The Atlantic, Pacific, and Indian Ocean basins have very similar histories because they all formed from a single ocean 200 million years ago. a. true b. false 6. Another name for mid-ocean ridges is spreading centers, because seismic waves generated by earthquakes spread rapidly there. a. true b. false 7. The Hawaiian Islands exemplifies a(n): a. passive margin b. active margin c. hot spot d. island arc 8. The part of the Earth's interior that is liquid in nature is the a. mantle b. outer core c. inner core d. lithosphere 9. When three plate boundaries intersect, they form a(n): a. active margin b. triple junction c. subduction zone d. ridge crest 10. The supercontinent existing at the beginning of the present spreading cycle was a. Pangaea b. Panthalassia c. Laurasia d. Gondwanaland...
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This note was uploaded on 03/31/2008 for the course ? ? taught by Professor ? during the Fall '05 term at Indian Hills CC.
- Fall '05