A caldera is formed ____.
A)when seawater reacts with hot basalt
B)in volcanoes which do not have enough steam pressure to support solidified magma
C)from pyroclastic flows
D)when volcanoes form in freshwater lakes
E)by the collapse of a magma chamber

Question

Quizplus · Accepted Answer

Calderas are large, basin-like depressions that form when a volcano's magma chamber empties and collapses. This process can occur after major eruptions, where the withdrawal of magma from beneath the volcano causes the ground above to lose support and cave in, creating a large crater.

A Caldera Is Formed ____