How are volcanoes caused? (about 50 to 60 words)
angelinaChristopher:
actually I have to complete all my notebooks within a few days.... so... not getting time
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Volcanoes happen when magma rises to the surface of the earth, which causes bubbles of gas to appear in it. This gas can cause pressure to build up in the mountain, and it eventually explodes. When the magma bursts out of the earth, it is called lava...
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a volcano is a vent or chimney which transport Molten rock from Depths to earth Surface through eruption. Magma erupting from a volcano is called Lava. Lava build up around the vent and form of cone.
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