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Question
Calderas range in size from less than 1km to tens of kilometers across. What do they all have in common?A) They all form by subsidence of the caldera center due to withdrawal of magma from below.
B) They all form in explosive eruptions.
C) They all are formed in rhyolitic volcanos and have associated eruptions of ash flow tuff.
D) They all form from collapse of composite volcanos following explosive eruptions; Crater lake is an example.
Answer
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