Multiple Choice
Pumice is ____.
A) created in explosive eruptions involving viscous magma and high amounts of volatiles
B) the solidified form of a lahar that has reached the sea
C) compacted volcanic ash
D) "clinkers" of basalt formed in slow lava flows
E) created in slow eruptions involving fluid magma and low amounts of volatiles
Correct Answer:
Verified
Correct Answer:
Verified
Q28: The term _ refers to how fluid
Q29: Name and describe the three types of
Q30: A caldera is formed _.<br>A)when seawater reacts
Q31: The volume of magma expelled in an
Q32: How are pyroclastic flows created and why
Q34: A resurgent dome _.<br>A)forms in the collapsed
Q35: Most hazardous volcanoes occur near subduction zones.
Q36: Pyroclastic flows are dangerous because they _.<br>A)contain
Q37: Volcanoes with large, steep-sided cones, called _-volcanoes,
Q38: Lava domes and continental calderas cannot produce