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10 Cards in this Set
- Front
- Back
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What is the term for a volcano that will probably not erupt again? 1. defunct volcano 2. dormant volcano 3. active volcano 4. extinct volcano |
Extinct volcano |
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What type of large volcanic ejecta forms when liquid or semiliquid lava is thrown high into the air and hardens before hitting the ground? 1. volcanic blocks 2. lapilli 3. volcanic bombs 4. volcanic ash |
Volcanic bombs |
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The channel through which a volcano ejects gases, ash, and rock is the 1. magma chamber 2. pyroclast 3. vent 4. cone |
vent |
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A gently sloping volcano that pours out large quantities of lava in mild eruptions is a ______ volcano 1. shield 2. surrogate 3. composite 4. cinder-cone |
shield |
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What is the smallest type of solid volcanic ejecta? 1. volcanic blocks 2. lapilli 3. volcanic bombs 4. volcanic ash |
Volcanic ash |
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What is the actual source of a volcanic eruption? 1. magma chamber 2. pyroclast 3. vent 4. cone
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magma chamber |
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The type of volcanic rock that forms when lava is emitted underwater is _____ lava |
Pillow |
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A scientist who studies volcanoes and related phenomena is a(n) |
volcanologist |
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Molten rock in a reservoir beneath the surface is |
Magma |
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More than half of the world's volcanoes are located in the volcanic zone called the |
Ring of Fire |
