Volcanoes

At least 1,500 active outletes dot the globe, and some of them cause been regularly flip ones wiging for years. They variant when molten rock called magma, breaks finished a weak area of mankinds surface. The chamber that tone down magma butt quietly flow hole-and-corner(a) for hundreds of years, and then erupt with great fury. I will be explaining more of the grandness of volcanoes, and some of the different chacteristics they have. Volcanoes are holes or vents in the dry lands crust, created when molten, hot magma, beneath the crust of the Earth is metier upward to the surface. First, magma collects in a pocket beneath the crust, draw builds up and forces it up through and through cracks to the surface, and hot mess upes try to bilk but are trap in the magma. Next, the surface of the Earth begins to bulge until the cart can no longer be contained. Finally, heavy weaponses and fragments are released in a violent explosion called a volcanic eru ption. A volcano can erupt many another(prenominal) times in its lifetime. The material released over many eruptions piecemeal builds up a cone shaped mountain. First, in the spunk of the mountain is a vent called the fundamental vent; at that place can be smaller side vents that come attain of the central vent.

Next, in that location is a bowl shaped crater at the top of the central vent and under the volcano thither is a large magma chamber where the magma is. The explosive force of a volcano depends on how much gas is take a hop in the magma. When there is a lot of gas detain in the magma the eruptions are more explosive, and! when there is less gas the eruptions are less explosive. Magma flows out of the volcano in the social class of lava. The lava exiting from an erupting volcano settles on the sides of the volcanic mountain and cools forming a surd crust. If there were more pressure the magma would be shot into the air, and if there were less pressure it would just flow out of the top. Depending on how much lava and magma build up different types of volcanoes can be formed....If you want to get a full essay, order it on our website: OrderCustomPaper.com

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