What feature is caused by the collapse of the roof of an empty magma chamber?
A) a volcanic tube
B) a maar
C) a geyser
D) a caldera
E) hot springs
Correct Answer:
Verified
Q21: The most lethal volcanic phenomena (responsible for
Q22: The interaction between magma and groundwater produces
Q23: Approximately how many people live in close
Q24: Which of the following is a stratovolcano
Q25: What kind of magma is dominantly produced
Q27: Which of the following is usually the
Q28: Basaltic eruptions
A) tend to have low viscosity.
B)
Q29: What process causes melting of rocks in
Q30: Dacitic and andesitic eruptions
A) are commonly explosive.
B)
Q31: Which of the following is a classic
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