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Word Count: 418
The distructive power of a valcano is one of the most violent and deadly of all natural forces In a short period of time these massive explosions of the earths crust can shatter whole communities Valcanoes are very distructive no matter how big or how small they erupt at They cause the highest amount of deaths and the greatest amount of damage Of the two major types of Volcanoes andestic and basaltic the two typical volcanoes begin life when a mass of low-density magma forces its way to the surface When the density of the rising magma is the same as that of the surrounding rock it gathers in a magma chamber Any rise in pressure in the chamber may now push the magma upwards through cracks in the overlying rock As the magma traveling up a crack approaches the surface the pressure from the overlying rocks reduces gases are released from the magma and expand so suddenly that an explosion rips open a funnel shaped vent called a diatreme to the surface The lava that blasts out of the vent then cools to form cinders ash and dust - all referred to as Tephra A ring of tephra collects around the vent and as the eruption subsides this blocks up the diatreme Volcanoes have erupted in many different places Volcanoes have erupted in The Philippines Java Papua New Guinea Hawaii and many other places The Ring of Fire located around the Pacific Ocean is 20 or so places with active volcanoes in them joined by one big imaginary line that forms a circle or Ring when scaled down to the size on a map Somewhere in the world an eruption occurs at least once a month Whether it be big or small it doesnt really matter at all If it kills 1 person or 1 000 people it is still counted as an eruption In some countries volcanoes are common and erupt
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