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melted rock formed by heat and pressure deep inside Earth |
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area between mantle and core where hot rock is forced into the crust |
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places where most volcanoes occur |
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opening in Earth's surface through which magma flows |
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steep-walled depression around a volcanoes vent |
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an opening in Earth's surface that often forms a mountain when layers of lava and volcanic ash erupt |
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cause rocks to melt and form magma |
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Two factors that will determine whether an eruption will be explosive or quiet |
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magma that is low in silica and produces no explosive eruptions is called |
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magma that is high in silica and produces explosive eruptions is called |
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Bits of rock dropped from the air during the eruption of a cinder cone volcano are called |
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what are the 3 forms of volcanoes |
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shield, cinder cone, and composite |
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What is the type of magma found in a shield volcano |
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What is the type of magma found in a cinder cone volcano |
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What is the type of magma found in a composite volcano |
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What does V.E.I. stand for |
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Volcanic Explosivity Index |
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What was the largest volcanic eruption ever recorded by man |
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What was the volcano that buried Pompeii |
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What were people buried in at Pompeii- lava or ash |
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Between 1600 and 1982where have the most people died as a result of a volcano |
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What is the largest volcano above water in the world |
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What was the most destructive volcano in U.S. history |
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