Multiple Choice
A lahar may form when ____.
A) lava is cooled quickly underwater
B) volcanic gas is erupted into the stratosphere
C) lava cools and cracks along joints
D) magma moves through fissures in the country rock
E) rain falls on unconsolidated pyroclastic materials
Correct Answer:
Verified
Correct Answer:
Verified
Q16: Basalt plateaus erupt from _.<br>A)supervolcanoes<br>B)shield volcanoes<br>C)fissures<br>D)lava domes<br>E)cinder
Q17: Volcanic eruptions destroy buildings and productive land,
Q18: Geologists successfully gave timely warnings of impending
Q19: Although it is difficult to get a
Q20: Pyroclastic materials _.<br>A)have low viscosity and a
Q22: _ in California is the world's largest
Q23: The one place on Earth where mid-ocean
Q24: After a volcano erupts, the frequency of
Q25: The Hawaiian islands formed via _ volcanism.<br>A)subduction
Q26: Harmonic tremor indicates that magma is moving