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Earth Science 101 Practice Test: Volcanoes and Other Igneous Activity
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Earth Science 101 Practice Test: Volcanoes and Other Igneous Activity
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25 Questions

1. The average composition of rocks comprising a large composite cone or stratovolcano is similar to a(n) ________ magma.
2. Which of the following best describes Shiprock, a famous volcanic feature in New Mexico?
3. Which region has the greatest concentration of currently active volcanoes?
4. Kilauea is an example of a ________.
5. Which type of basaltic lava flow has a fairly smooth, unfragmented, ropy surface?
6. The recent (geologically) volcanic activity in Yellowstone National Park is ________.
7. Mount St. Helens is ________.
8. The ________ ocean basin is rimmed by the most subduction zones.
9. A ________ is a near surface, intrusive igneous rock body that results from local inflation of a horizontal sill.
10. A ________ volcano is a very large, gently sloping mound composed mainly of basaltic lava flows.
11. Spreading center volcanism most generally produces rocks that are ________.
12. ________ are usually the most abundant gases emitted during basaltic volcanism.
13. The 1943 eruption of Paricutin in Mexico was characterized by ________.
14. Mount Pelée on Martinique is an example of a ________.
15. ________ is a major dissolved volatile constituent in both magmas and volcanic gases.
16. Which statement about the May, 1980, eruption of Mount St. Helens is false?
17. Which one of the following statements concerning cinder cones is false?
18. Cinder cones ________.
19. Kilauea and Mauna Loa are ________.
20. Volcanic bombs originate ________.
21. Which one of the following best describes volcanism in the Cascade Range, northwestern United States?
22. Which of the following factors help determine whether a volcanic eruption will be violent or relatively quiescent?
23. Paricutin is an example of a ________.
24. Which one of the following shows the correct order (left to right) of decreasing magma viscosity?
25. Which of the following best describes the bedrock in the Sierra Nevada Mountains in California?

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