Volcanoes Quiz

What is the main characteristic of explosive volcanic eruptions?

• Lava flows gently

• Gases can easily escape

• Magma is thick and sticky

• Magma is thin and runny

Which type of volcano is defined by a steep profile with a summit crater?

• Lava dome

• Composite cone

• Cinder cone

• Shield volcano

What is a caldera?

• A type of lava flow

• A large cauldron-like hollow formed by the collapse of a volcano

• A steep-sided volcano

• A type of volcanic gas

Which volcanic feature is formed by the cooling of magma within the crust?

• Lava plateau

• Caldera

• Batholith

• Shield volcano

What is the main component of basic lava?

• High gas content

• High water content

• Low silica content

• High silica content

Which of the following is an example of a hotspot volcano?

• Mount Etna

• Mount Vesuvius

• Mount Fuji

• Mauna Loa

What is the primary cause of volcanic eruptions at convergent plate boundaries?

• Divergence of tectonic plates

• Subduction of an oceanic plate

• Formation of hotspots

• Separation of tectonic plates

Which type of volcanic eruption is characterized by the outpouring of lava without significant explosions?

• Effusive eruption

• Explosive eruption

• Pyroclastic flow

• Lahar

What is a pyroclastic flow?

• A slow-moving lava flow

• A mixture of rock fragments, hot gases, and air moving at high speeds

• A type of volcanic gas

• A type of volcanic rock

Which volcanic landform is the smallest and most common type on Earth?

• Lava dome

• Cinder cone

• Composite cone

• Shield volcano