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Questions and Answers
What is released from a volcano during a volcanic eruption?
What is released from a volcano during a volcanic eruption?
- Only lava
- Only gas
- Magma
- Lava, ash, and pieces of solid rock (correct)
How is a volcano formed?
How is a volcano formed?
- When lava flows into the ocean
- By the movement of small rocks near the surface
- When hot, molten magma in the mantle layer cools and hardens (correct)
- From the pressure of water trapped underground
What causes an eruption in a volcano?
What causes an eruption in a volcano?
- Pressure buildup under the Earth's crust and movement of large pieces of crust (correct)
- Too much sunlight on the volcano
- The presence of animals near the volcano
- Rainfall on the volcano
Where do most volcanoes form?
Where do most volcanoes form?
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What is a volcanic pipe?
What is a volcanic pipe?
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What is the result of a volcano erupting forcefully from a vent and the ash falling back to surround the vent?
What is the result of a volcano erupting forcefully from a vent and the ash falling back to surround the vent?
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Which type of volcano has thin, runny lava that travels far from the original eruption site?
Which type of volcano has thin, runny lava that travels far from the original eruption site?
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What type of volcanic plateau forms when lava from an eruption is thin and flows easily over a wider area?
What type of volcanic plateau forms when lava from an eruption is thin and flows easily over a wider area?
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Which type of eruption results from a crack in the Earth's crust allowing magma to escape without the need for a volcanic pipe or vent?
Which type of eruption results from a crack in the Earth's crust allowing magma to escape without the need for a volcanic pipe or vent?
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What type of volcano is Mount St. Helens an example of?
What type of volcano is Mount St. Helens an example of?
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