Volcanoes

What is the main topic of the video?

• Different types of volcanoes
• The formation of islands
• The earth's movement and changes
• The dangers of volcanic eruptions

What is magma?

• Hardened lava
• Trapped gases
• Molten liquid rock
• Ash and smoke

What does it mean for a volcano to be dormant?

• It is only sleeping and may erupt someday
• It was once active but will never erupt again
• It is currently erupting
• It is extinct and will never erupt again

Which type of volcano has gradual sloping sides and is not as explosive?

• Shield volcano
• Cinder cone volcano
• Stratovolcano
• Supervolcano

Where did the Parícutin volcano emerge from?

• The sea
• The Cascade Mountain Range
• The Pacific Ocean
• Yellowstone National Park

What type of volcano is Mount St. Helens?

• Shield volcano
• Cinder cone volcano
• Stratovolcano
• Supervolcano

How far did the eruption of Mount St. Helens reach?

• 8 miles
• 10,000 feet
• 1,300 feet
• 396.24 meters

How many potentially active volcanoes are there in the world?

• 150
• 500
• 1,000
• 1,500

Where are many volcanoes located?

• Along the Pacific Rim
• In the United States
• In the Aleutian Islands
• In Yellowstone National Park

What is the Ring of Fire?

• An area in the Pacific Ocean with many volcanoes
• A volcanic complex in Iceland
• A supervolcano in Yellowstone National Park
• A path along South and North America