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A volcano is a(n) gasesgasesopeninglavalandformSelect your answer in the surface of Earth. Melted rock, gaseslandformlavaeruptedSelect your answer, pieces of rock, and dust are forced out of this opening. The word volcano is also a name of the lavagasesgaseslandformopeningSelect your answer that builds around this opening. Melted rock that flows out onto the ground is called landformlavagasesgasesSelect your answer. A large disaster happened in Italy about 2,000 years ago when Mt. Vesuvius gasesopeningeruptedgasesSelect your answer. Many people died from breathing deadly landformgaseseruptedlavaSelect your answer.