The Volcanic Explosivity Index (VEI) is based on
A) The length of the eruption.
B) The volume of pyroclastics produced.
C) The height to which the pyroclastics rose in the atmosphere.
D) All the choices are correct.
Correct Answer:
Verified
Q21: Each volcano has a characteristic eruptive style;
Q22: To halt a pyroclastic flow,one could use
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Q24: A caldera is
A) A topographically low area
Q25: A dormant volcano that is currently inactive
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Q28: The type of volcano most likely to
Q29: The 1991 eruption of Mt.Pinatubo caused global
Q30: The Cascade Range volcanoes
A) Sit above a
Q31: A volcanic rock of intermediate composition,characteristic of
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