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Sometimes it's hard to tell if the bowl-shaped feature at the top of a volcano is a crater or a caldera. You can usually determine if it's one or the other by _____.
a. learning its size and how it formed
b . learning how much water it is filled with
c. learning what type of volcano it's on top of
d. learning if the volcano is active or extinct

Respuesta :

A caldera viscous or acidic lava plugs the vent of a volcano this leads to violent eruptions this causes the crater to be blown off the top of the volcano subsides or collapes forming a basin shaped depression.called a caldera .hope this helps
markud
i think it is D. hope this helps :]

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