A caldera forms when the bottom of the magma chamber that fueled the volcano falls further underground.

Question 1 options:

a) True

b) False

True I think?

Explanation:

the formation of a caldera happens by collapse which means it is already at the bottom of the magma chamber.

True

Explanation:

When the magma has erupted from a volcano in large amount, the strength of volcano to hold its own weight reduces and hence the volcano collapses into itself thereby forming a cladera. Formation of cladera is triggered when the magma chamber start emptying. With the removal of magma, the center of volcano lying with in the ring fracture collapses.

Hence, the given statement is true.