Volcanoes most commonly form where

Question

A.) two tectonic plates alongside each other
B.) two tectonic plates pull away from each other
C.) where there is no tectonic plate motion
D.) where one tectonic plate plugs beneath other

Answer 1

Volcanoes most commonly form where:

D.) where one tectonic plate plugs beneath another.

This process is known as subduction, where an oceanic plate is forced beneath a continental plate or another oceanic plate, leading to the melting of the subducted plate and the formation of magma that can result in volcanic activity.