Unit 2 Part 2 - Lesson 2: Volcanoes

What is a volcano?

• A mountain that emits ash

• A vent in Earth's crust through which molten rock flows

• A type of earthquake

• A large body of water

How many different places on Earth do volcanoes erupt in any given year?

• About 200

• About 60

• About 20

• About 100

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What causes the formation of volcanoes and volcanic eruptions?

• Ocean currents

• Solar flares

• Global warming

• The motion of Earth's tectonic plates

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Where do volcanoes form?

• Only at convergent boundaries

• Only at divergent boundaries

• At convergent and divergent boundaries, and at hot spots

• Only in the ocean

What is the Ring of Fire known for?

• Its beautiful beaches

• Its dense forests

• A lot of earthquake and volcanic activity

• Its cold climate

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Which two well-known volcanoes are included in the Alpide belt?

• Mount Fuji and Mount Kilimanjaro

• Mount Etna and Mount Vesuvius

• Mount Rainier and Mount St. Helens

• Mount Everest and K2

What are hot spots?

• Volcanoes not associated with plate boundaries

• Popular tourist destinations

• Areas with high temperatures on the sun

• Places where coffee is exceptionally good

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How do the Hawaiian Islands form?

• Due to coral growth

• From meteor impacts

• From a stationary hot spot under the Pacific Plate

• Through continental drift

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What factors determine the severity of damage produced by a volcano?

• The color of the lava

• The age of the volcano

• The time of day the eruption occurs

• Volcanic hazards

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How many volcanoes in the United States are classified as potentially active?

• About 50

• About 200

• About 100

• About 169

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