Detailed explanation and options for the selected question.
Which type of volcano is formed by alternating layers of lava and ash, also called a stratovolcano?
A.
Shield volcano
B.
Composite volcano
C.
Cinder cone
D.
Caldera
Explanation:
Composite (stratovolcanoes) have layers of lava, ash, pyroclastics. Shield is broad and gently sloped, cinder cones are small, caldera is a collapsed crater.