Ch 14 Internal Processes_key terms and Concepts questions.docx

6 describe and explain the tectonic activity volcanic

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6. Describe and explain the tectonic activity, volcanic activity, and general topographic features associated with the two kinds of divergent plate boundary: midocean ridges and continental rift valleys . Mention at least one present-day example of each of these kinds of divergent boundaries. 7. Describe and explain subduction and the tectonic activity, volcanic activity, and general topographic features associated with the three kinds of convergent plate boundary: oceanic–continental convergence , oceanic–oceanic convergence , and continental–continental convergence . Mention at least one present-day example of each of these kinds of convergent boundaries. 8. Describe the differences between an oceanic trench and a midocean ridge. 9. How does the San Andreas Fault system fit in with the theory of plate tectonics? 10. Why are volcanoes and earthquakes concentrated around the margin of the Pacific Ocean—the region referred to as the Pacific Ring of Fire ? Additions to Plate Tectonic Theory 11. What is a hot spot ? Name at least one present-day example of a hot spot.
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