Composite cones have steep slopes and experience ________ eruptions because they are composed of ________ magma.
A) mild; mafic
B) mild; felsic
C) violent; mafic
D) violent; felsic

Question

Quizplus · Accepted Answer

Composite cones, also known as stratovolcanoes, are composed of felsic magma which is more viscous than mafic magma. This high viscosity causes explosive eruptions which are often violent. Therefore, the correct choice is D.

Composite Cones Have Steep Slopes and Experience ________ Eruptions Because