GAS WELDING Gas welding is a process that use fuel gases and oxygen to weld and cut metals. Uses: 1-welding and cutting metals 2-in Stone Work for flaming 3-in the glass industry for fire polishing 4-in jewelry production How we use it : The apparatus used in gas welding consists basically of an oxygen source and a fuel gas source it’s pumped through hoses and get out to cut or weld the used metal and there are two cylinders one of them contain oxygen and we can control
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AIR POLLUTION [pic] Introduction The earth’s atmosphere‚ at or near sea level‚ consists approximately of 78 percent nitrogen‚ 21 percent oxygen and 1 percent other gases. If it were possible to remain in this state‚ 100 percent clean air would result. However‚ many varied sources allow other gases and particulates to mix with the clean air‚ causing our atmosphere to become unclean or polluted. Some of these pollutants are visible while others are invisible‚ with each
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Egypt has had a long list of foreign rulers such as the Ottoman Empire‚ France‚ and as recent in modern history‚ the British throughout its ancient existence. Colonial rule was a part of life in Egypt for the longest while until the fight for independence spearheaded after the end of World War I. Why should a country with as rich of a history as Egypt have to answer to foreign rule from the West? The Ottoman’s rule that was in place for centuries was replaced by that of the British‚ and that is not
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Ancient Egypt is one of the most fascinating of the ancient civilizations. Even today‚ the manner in which modern Egypt has melded with the ancient world is positively astounding. One cannot help but notice that the pull of the ancient world is still very much a part of modern cities such as Cairo and Alexandria. The Ancient Egyptian Pharaohs - Life of the ancient Egyptian pharaohs was filled with power‚ glory‚ murder‚ deceit and mystery. Slip into the world of ancient Egypt where a woman dressed
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SOIL POLLUTION INTRODUCTION Soil is the thin layer of organic and inorganic materials that covers the Earth’s rocky surface. The organic portion‚ which is derived from the decayed remains of plants and animals‚ is concentrated in the dark uppermost topsoil. The inorganic portion made up of rock fragments‚ was formed over thousands of years by physical and chemical weathering of bedrock. Productive soils are necessary for agriculture to supply the world with sufficient
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Air Pollution CFish Mr. Nollen Biology 2B 8 May‚ 1996 The Problem Contamination of the atmosphere by gaseous‚ liquid‚ or solid wastes or by-products that can endanger human health and the health and welfare of plants and animals‚ or can attack materials‚ reduce visibility‚ or produce undesirable odors. Among air pollutants emitted by natural sources‚ only the radioactive gas radon is recognized as a major health threat. A byproduct of the radioactive decay of uranium minerals in certain kinds
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1. INTRODUCTION Environmental Pollution is the most important threat to the human race on this planet today. Environment consists of earth‚ air‚ water‚ flora and fauna. It means adding impurity which threatens the life of flora and fauna to the environment. These impurities are mainly created by man-made activities. The impurity can be air‚ water‚ land any sort of thermal radiation‚ etc. As we moving towards globalization there is rapid increase in industrialization and technological growth which
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Introduction to Industrial Pollution Industrial pollution is pollution which can be directly linked with industry‚ in contrast to other pollution sources. This form of pollution is one of the leading causes of pollution worldwide; in the United States‚ for example‚ the Environmental Protective Agency estimates that up to 50% of the nation’s pollution is caused by industry. Because of its size and scope‚ industrial pollution is a serious problem for the entire planet‚ especially in nations which
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expanding into Egypt after the deregulation of the Egyptian telecommunications market in 1998. The decision involved strategic issues and internal considerations. Vodafone put emphasis on global growth expansion into mobile markets worldwide‚ and they had a decision matrix for assessing new investments. The first investment point of emphasis was looking at the country’s political stability. Although there was some political unrest in the region‚ Vodafone’s executives decided that Egypt was a stable
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Tourism in Egypt: How Do British Tourists Perceive The Local Problems In The Industry? Research Proposal – Research Methods 2 By: Miglena Lozancheva 2011 1/13/2011 CONTENTS Introduction ..............................................................................................................................3 Research Background ...............................................................................................................3 Research Aim .................
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