Topic 4 Lesson 4 Test

What is a shield volcano primarily composed of?

• Felsic lava

• Pyroclastic material

• Mafic lava

• Volcanic dust

Cinder cone volcanoes are typically:

• Large with gentle slopes

• Dome-shaped

• Small with steep sides

• Found at mid-ocean ridges

What is another name for a stratovolcano?

• Shield volcano

• Dome volcano

• Composite cone

• Hot spot volcano

What is a caldera?

• A type of lava

• A large volcanic crater

• A type of vent

• A volcanic island

Pyroclastic material refers to:

• Molten lava

• Solid fragments ejected from a volcano

• Water vapor released by volcanoes

• Underground magma

Tags

NGSS.MS-ESS3-2

The finest type of volcanic material is:

• Lapilli

• Volcanic dust

• Volcanic blocks

• Bombs

Lapilli are best described as:

• Large volcanic boulders

• Lava flows

• Small rock fragments ejected from a volcano

• Fine volcanic ash

Which of the following is the largest type of pyroclastic material?

• Volcanic dust

• Lapilli

• Ash

• Volcanic blocks

Mafic lava is typically:

• High in silica and explosive

• Found only in stratovolcanoes

• Low in silica and very fluid

• Found at subduction zones

Felsic lava is characterized by:

• Low viscosity

• Fast-flowing lava

• High silica content and explosive eruptions

• Forming shield volcanoes