Beautiful cone-shaped volcanoes such as Mt.Fuji,Mt.Hood,and Mt.Rainer are predominantly composed of
A)basaltic rocks.
B)andesitic rocks.
C)granitic rocks.

Question

Quizplus · Accepted Answer

Beautiful cone-shaped volcanoes are also called stratovolcanoes, which are composed mainly of andesitic rocks. Andesitic magma has intermediate viscosity and forms a steep-sided slope during eruptions, leading to cone-shaped volcanoes. Basaltic rocks are found in shield volcanoes, which have a more gentle slope, and granitic rocks are found in calderas, which have a flat top.

Beautiful Cone-Shaped Volcanoes Such as Mt