Volcanoes most commonly form where

Question

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

Answer 1

Volcanoes most commonly form where:

A.) two tectonic plates pull away from each other (divergent boundaries)

B.) one tectonic plate plunges beneath another (convergent boundaries)

Both A and B are correct, as volcanoes can form at divergent boundaries (where plates separate) and convergent boundaries (where one plate is forced beneath another). However, if you have to choose the most common option, it would be:

B.) one tectonic plate plunges beneath another

This is because subduction zones frequently lead to the formation of volcanic arcs, especially in areas like the Ring of Fire.

C.) two tectonic plates alongside each other (transform boundaries) and D.) where there is no tectonic flight motion do not typically result in volcanic activity.