Calderas are elongated, circular depressions on Earth's surface that typically form by:
A) the emptying of a magma chamber and subsequent roof collapse
B) a gradual buildup of pyroclastic material around a volcanic vent
C) the impact of a meteor collision with Earth
D) a ring of volcanoes surrounding a depression
Correct Answer:
Verified
Q6: The majority of continental and island-arc volcanoes
Q7: A type of volcano that erupts fluid
Q8: Gases cannot escape from _ magma easily;
Q9: Lahars may be caused by:
A) rapid snowmelt
B)
Q10: Gases escape easily from low viscosity magma,
Q11: As fluid basaltic lava pours out of
Q13: Another name for a pyroclastic flow is:
A)
Q14: Hawai'i, Yellowstone, and the Snake River Plain
Q15: It is difficult for scientists to understand
Q16: The Hawaiian Islands formed over a stationary
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