Quizizz-Volcanic Eruptions Video Quiz

What is the primary cause of volcanic eruptions?

• Gravitational pulls from the moon

• Oceanic movements

• Sudden increase in air temperature

• Collision of tectonic plates

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What does VEI stand for?

• Volcano Energy Index

• Volcanic Emission Intensity

• Volcanic Eruption Indicator

• Volcanic Explosivity Index

Which area is known as the 'Ring of Fire'?

• Pacific Basin

• Atlantic Rim

• Indian Ocean Belt

• Arctic Circle

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What is a pyroclastic flow?

• A fast-moving current of hot gas and volcanic matter

• A slow-moving lava flow

• A type of volcanic rock

• A cooling stream of water from a volcano

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What can trigger explosive volcanic eruptions?

• High altitude of the volcano

• Low temperatures in the magma

• Thick magma loaded with gas

• Presence of water only

From the very beginning, volcanoes have served which function that is vital (essential) for life on Earth?

• Creating the Earth's atmosphere

• Cooling the Earth's core

• Increasing oxygen levels

• Decreasing land mass

What happened to the town of Kalapana?

• It was buried under molten rock

• It was submerged under water

• It was turned into a forest reserve

• It became a tourist attraction

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What is the significance of the Hawaiian Islands in terms of volcanic activity?

• All of the islands are volcanoes

• Only the largest island is a volcano

• Only one island is a volcano

• No islands are volcanoes

What is a 'hot spot' in volcanic terms?

• A narrow zone with excess heat that causes rocks to melt and then rise as lava

• A cool area that suppresses volcanic activity

• A safe zone away from volcanic eruptions

• A water source near a volcano

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What is the main danger of a volcano like Montserrat's Soufriere Hills?

• Pyroclastic flows

• None, it's a dormant volcano

• Flooding from heavy rains

• Earthquakes only

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NGSS.MS-ESS3-2