what was formed when the pacific and north american plates converged?
a) the mid-atlantic ridge
b) the san andreas fault
c) mount st. helens
d) the hawaiian islands

The correct answer is - C) Mount St. Helens.

Mount St.Helens is a volcanic mountain. It is located in the western part of the North American continent, in close proximity of the plate boundary between the North American and Pacific plates.

As a result of the subduction of the Pacific plate bellow the North American plate, a lot of geologic activity has appeared along and around the subduction zone, including the volcanic activity.

Mount St Helens is a result of this volcanic activity, thus becoming part of the biggest volcanic chain on the planet known as the ''Ring of Fire''.

I am pretty sure it was the San Andreas Fault.

i'm sure the answer you are looking for would be

a. an ice age

hope this contact me if this didn't or you need with more answers : )