Volcano Types: Composite vs Shield

What is another name for composite cone volcanoes?

• Shield volcanoes

• Stratovolcanoes

• Cinder cone volcanoes

• Lava domes

Where are composite cone volcanoes typically found?

• Constructive plate boundaries

• Destructive plate boundaries

• Transform plate boundaries

• Hotspots

What type of plate subducts beneath a continental plate at destructive plate boundaries?

• Continental plate

• Oceanic plate

• Tectonic plate

• Lithospheric plate

What is the typical shape of a composite cone volcano?

• Flat and wide

• Dome-shaped

• Steep-sided and conical

• Irregular and fragmented

Why do composite cone volcanoes have steep slopes?

• Due to fast-flowing lava

• Due to thick, viscous lava

• Due to frequent eruptions

• Due to low silica content

What is the main component in the lava of composite cone volcanoes that makes it thick?

• Iron

• Magnesium

• Silica

• Calcium

How do the eruptions of composite cone volcanoes compare to those of shield volcanoes?

• More frequent and less violent

• Less frequent and more violent

• Equally frequent and equally violent

• Less frequent and less violent

What builds up the steep, towering structure of composite cone volcanoes?

• Layers of lava only

• Layers of ash only

• Layers of lava, ash, and volcanic rocks

• Layers of water and ice

What happens to the lava from composite cone volcanoes as it flows?

• It travels far before cooling

• It cools and hardens quickly

• It evaporates before solidifying

• It remains liquid indefinitely

What is the primary reason for the explosive nature of composite cone volcano eruptions?

• Low gas content in the magma

• High silica content in the magma

• Low pressure at the vent

• High water content in the magma