Chapter 5 - Multiple-Choice Questions 1 In 1980 was the...

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Multiple-Choice Questions 1) In 1980, __________ was the first Cascade Range volcano to erupt since Mt. Lassen, California, in 1915-16. A) Mt. Rainier B) Mt. Shasta C) Kilauea D) Mt. St. Helens Answer: D Diff: 1 2) Which type of basaltic lava flow has a fairly smooth, unfragmented, ropy surface? 3) __________ is a major dissolved volatile constituent in both magmas and volcanic gases? 4) Volcanic bombs originate __________. 5) Which natural phenomenon occurs for many years after major explosive volcanic eruptions such as Tambora and Pinatubo? A) heavy falls of volcanic ash within 100 km of the volcano B) unusually warm weather in the tropics and subtropics C) a worldwide rise in sea level of one to three centimeters D) brilliantly colored sunrises and sunsets Answer: D Diff: 1 6) What fate befel the 'Lost City of Atlantis' mentioned in Plato's writings?
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7) __________ magma is the most abundant type of erupted at oceanic spreading centers. 8) The 1991 Pinatubo eruption in the Philippines caused brilliantly colored sunrises and sunsets to be seen for the next few years. What caused this phenonmenon? 9) The __________ ocean basin is rimmed by the most subduction zones. A) Atlantic B) Indian C) Pacific D) Arctic Answer: C Diff: 1 10) Which was the most powerful, explosive volcanic eruption of historic time?
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