About volcanos...     Bsun1.wmf (8888 bytes)

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      A volcano is an opening in the earth's crust from which materials such as magma and gases are ejected. Volcanos can be formed when plates diverge, creating an opening in the earth's crust, from which molten rock called magma gushes out from.

                                 Structure of a volcano

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                    Different types of volcanos

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