A preface This report, part of the English reading, writing, which is the first group is about. Volcano. The volcano is a phenomenon that suggests liberated energy naturally. As proof that our world energy accumulated inside the ruins, mountains, leaving Roy. The evolution of the world in the past. Volcanoes are found along the cracks of the Earth's crust. Volcanoes in the world are mostly volcanic ruins off and in sea and ocean. Volcano cause changes in morphology of the surface world. Have an adverse effect on the natural air, water, soil, animals and humans. The mountain is both punishment and beneficial creatures.
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