benefits of a volcano
Volcanoes both harass and help mankind. As dramatically demonstrated by the Mount St. Helens on May 1980 Volcanic materials ultimately bread down to form some of the most fertile soils on Earth, cultivation of which fostered and sustained civilizations. People use volcanic substances as construction materials, as abrasive and cleaning agents, and as raw materials for many chemical and industrial uses. The internal heat associated with some young volcanic systems has been harnessed to produce geothermal energy.The Earth's crust, on which we live and depend on, is in large part the product of millions of once-active volcanoes and tremendous volumes of magma that did not erupt but instead cooled below the surface. For example, volcanic ash blown over thousands of square kilometres of land increases soil fertility for forests and agriculture by adding nutrients and acting as a mulch. Groundwater heated by large, still-hot magma bodies can be tapped for geothermal energy. And over many thousands of years, heated groundwater has concentrated valuable materials including copper, tin, gold, and silver, into deposits that are mined throughout the world. Therefore the benefits of living near the volcano outweigh the costs.
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Approximate Word count = 1059
Approximate Pages = 4 (250 words per page double spaced)
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