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Volcanoes Study Guide 1

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volcano	an opening in the Earth that erupts with gases, ash, and lava.
shield volcanoes	the lest explosive of all volcanoes
composite volcanoes	volcanoes found mostly where Earth's plates come together and one plate sinks under the other
thicker	high levels of silica make magma ___
mantle	Magma originates here
pyroclastic flow	a type of lava flow
lava	after magma reaches the surface it is called
sulfurous gases from volcanoes cause	acid rain

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