Approximately how long has B.C.'s Mt. Garibaldi, in the Canadian part of the Cascades volcanoes, been dormant?
A) since 1967
B) since 1912
C) since May 1980
D) since the last Ice Age
Correct Answer:
Verified
Q20: Volcanic bombs originate_ .
A) as blocks of
Q21: What destroyed the city of St. Pierre,
Q22: Which of the following is a major
Q23: What are large, fairly steep- sided cones
Q24: What kind of material is most commonly
Q26: Which one of the following is made
Q27: What drives explosive volcanic eruptions?
A) expanding superheated
Q28: On May 18, 1980, which Cascades volcano
Q29: Which natural phenomenon occurs for several years
Q30: Which one of the following best describes
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