what is volcano brifely
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A volcano is a mountain that has lava (hot, liquid rock) coming out from a magma chamber under the ground, or that has had that in the past. Volcanoes are formed by the movement of tectonic plates. Most volcanoes have a volcanic crater at the top. When a volcano is active, materials come out of it.
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a volcano is a conical rupture rising upward from the surface which allow to come out of magma from the inside of planets
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