Volcanoes Quiz

What is the molten rock called when it is beneath the surface of the Earth?

• Magma
• Lava
• Ash
• Rock

How many volcanoes on Earth are considered active?

• 100
• 500
• 1,900
• 10,000

Where are most volcanoes found?

• In the ocean
• In deserts
• In rainforests
• In polar regions

What are the two types of plate boundaries most likely to produce volcanic activity?

• Divergent and convergent
• Transform and convergent
• Divergent and transform
• Convergent and subduction

Which ocean is home to the Mid-Atlantic Ridge?

• Atlantic Ocean
• Pacific Ocean
• Indian Ocean
• Arctic Ocean

Which type of volcano is characterized by steep, conic peaks?

• Stratovolcano
• Shield volcano
• Pyroclastic cone
• Lava dome

Which volcano is considered the most active in Central America?

• Mount Rainier
• Mount Kilimanjaro
• Volcan de Fuego
• Mount Vesuvius

What type of eruption is characterized by steady lava fountains?

• Hawaiian
• Strombolian
• Vulcanian
• Plinian

What is the deepest lake in the United States?

• Crater Lake
• Lake Tahoe
• Lake Superior
• Lake Michigan

Which volcanic hazard is a mixture of hot rock fragments and toxic gases?

• Landslides
• Lahars
• Pyroclastic flows
• Volcanic ash