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» Volcano Watch: Mapping New Lava
» Volcano Facts
» Mount St. Helens
» Pele: The Volcano Goddess
» Disaster Intensity Scales
» Water, Wind and Earth Game
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. Gases and rock shoot up through the opening and spill over or fill the air with lava fragments. Eruptions can cause lateral blasts, lava flows, hot ash flows, muds ...
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