Multiple Choice
Which best describes a caldera?
A) a collapse pit less than 1 km2 on the summit of a volcano
B) a small, steep- sided, volcanic depression bored out by an eruptive plume
C) a large depression hundreds of km across full of volcanic deposits
D) a large circular volcanic depression caused by collapse after a large scale, explosive felsic eruption
Correct Answer:

Verified
Correct Answer:
Verified
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