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A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava .... They are sometimes formed within the crater of a previous volcanic eruption, as in the case of Mount Saint Helens, but can also form ...


Get more information about volcanoes from National Geographic.


Get information, facts, and pictures about Volcanoes at Encyclopedia.com. Make research projects and school reports about Volcanoes easy with credible ...


A volcano is a mountain that opens downward to a pool of molten rock below the ... has erupted thousands of years ago and there's no possibility of eruption.


Check out these fascinating volcano facts with National Geographic Kids! ... Check out this explosive video, full of exciting facts and information about volcanoes!


Active volcanoes worldwide - short information / VolcanoDiscovery.


A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. In an eruption ...


Articles, facts, information and photos for volcanoes and volcanic activity. | Geology.com.


Feb 20, 2013 ... A volcano is an opening in Earth's crust where magma breaks ... This cooler, thick lava usually rises near the end of an explosive eruption and ...