Which of the following statements best describes the formation of volcanoes?

Question

A.
At a convergent plate boundary, the oceanic crust is pulled beneath the continental crust, where magma forms and moves upward.
B.
At a divergent plate boundary, the pressure of seawater rushing into the oceanic crust rift creates a volcano.
C.
At a convergent plate boundary, the continental crust collides with another continental crust to form volcanoes.
D.
At a transform plate boundary, the crusts slide against each other to form magma by frictional heat.

Answer 1

The statement that best describes the formation of volcanoes is:

A. At a convergent plate boundary, the oceanic crust is pulled beneath the continental crust, where magma forms and moves upward.

This process, called subduction, leads to the melting of the oceanic crust and the formation of magma, which can rise to form volcanoes. The other options either misrepresent geological processes or do not accurately describe typical volcanic formation.