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What is a volcano simple definition?

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+1 vote
An opening in the Earth's crust from which lava, ash, and hot gases flow or are ejected during an eruption. A usually cone-shaped mountain formed by the materials issuing from such an opening. Volcanoes are usually associated with plate boundaries but can also occur within the interior areas of a tectonic plate.
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Geography Lesson: What is a Volcano?



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