연습문제

What is the term for molten rock below the surface of the Earth?

• Magma
• Lava
• Ash
• Gas

Which type of plate boundary is most likely to produce volcanic activity?

• Transform plate boundary
• Divergent plate boundary
• Convergent plate boundary
• Intraplate boundary

Which type of volcano is characterized by steep, conic peaks and layers of lava, volcanic ash, and fragmented rocks?

• Stratovolcano
• Shield volcano
• Pyroclastic cone
• Lava dome

Which volcanic eruption type is known for its steady lava fountains and fiery rivers of lava?

• Hawaiian
• Strombolian
• Vulcanian
• Plinian

What is the term for circular depressions created by the collapse of material inside a volcano?

• Craters
• Calderas
• Lahars
• Pyroclastic flows

Which volcanic hazard is a mixture of hot rock fragments and toxic gases that moves like a liquid?

• Landslides
• Lahars
• Pyroclastic flows
• Volcanic ash

What is the term for the cooling and solidification of lava fragments in the air?

• Eruption
• Lahar
• Pyroclastic flow
• Tephra

Which volcanic eruption type is the largest and most destructive, releasing a deadly mixture of lava, ash, and volcanic rocks?

• Hawaiian
• Strombolian
• Vulcanian
• Plinian

What is the term for the volcanic hazard that can cause complete darkness and disrupt air traffic?

• Landslides
• Lahars
• Pyroclastic flows
• Volcanic ash

Which international organization documents volcanic activity and maintains an archive of volcanic data?

• UNESCO
• IAVCEI
• USGS
• NASA