Explosive or voluminous eruptions may cause the volcano to collapse into the (now empty)magma chamber,producing a broad depression termed a ____________.
A) crater
B) lahar
C) caldera
D) fissure

Question

Explosive or voluminous eruptions may cause the volcano to collapse into the (now empty)magma chamber,producing a broad depression termed a ____________. 
A) crater 
B) lahar 
C) caldera 
D) fissure

Quizplus · Accepted Answer

The term "caldera" specifically refers to a broad depression caused by the collapse of a volcano into the empty magma chamber. Craters are typically smaller depressions at the top of a volcano caused by explosive eruptions. Lahars are mudflows caused by volcanic activity. Fissures are cracks in the Earth's surface that can release lava or gas during an eruption, but they do not necessarily result in a collapse of the volcano.

Explosive or Voluminous Eruptions May Cause the Volcano to Collapse