Speech Good morning Today we will tell u about the transportation of water and minerals in plants. The plants absorb water and minerals from the ground through roots. These nutrients are transported to various parts of the plant like stem‚ leaves and flowers. The phenomenon of upward movement of water and minerals is called ascent of sap. Only a small quantity of water is used up in metabolic process and growth of the plant. The plants require water and mineral salts for making food by process
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the steam engine. These both engines were inefficient but later on‚ James Watt improved its efficiency level by the addition
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Around 1347 in Western Europe‚ an Asia epidemic‚ The Black Death became widely spread through frequent trading with infected cities. In three years’ time‚ one third or about twenty-five millions of Europe’s population was killed by the plague. The Black Death victims were susceptible to contracting the plague due the seven year famine that occurred directly before the outbreak. Shortage of food‚ caused by extreme weathers that prevented crop growth‚ weakened the population’s immunity to deadliest
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Automotive engine Engines are desinged to be two strokes or four strokes of a piston that moves up and down in a cylinder. Generally‚ the automotive engine uses four strokes to convert chemical energy to mechanical energy through combustion of gasoline or similar hydrocarbon fuel. The heat produced is converted into mechanical work by pushing the piston down in the cylinder. A connecting rod attached to the piston transfers this energy to a rotating crankshaft Engines having from 1
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in Automotive Engine Blocks by Hieu Nguyen School of Engineering Grand Valley State University Term Paper EGR250 – Materials Science and Engineering Section B Instructor: Dr. P. N. Anyalebechi April 8‚ 2005 Manufacturing Processes and Engineering Materials Used in Automotive Engine Blocks Abstract Until recently‚ cast iron and aluminum alloys have been the preferential materials used to manufacture most diesel and conventional gasoline-powered engine blocks. However
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AP European Summer Work Chapter 9: The flowering of Medieval Civilizations Cultural Developments: in the 12th and early 13th century‚ education was revolutionized‚ the Bureaucratization of monarchies was introduced‚ the commercial transactions in cities‚ and the development of church and civil law as society became wealthier and more expansive. The Rise of Universities: In the high middle ages‚ universities revolutionized the world. Monastic Schools; monastic schools were found favorable
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The Impact of Printing in Europe Introduction Even though reading and writing skills were regarded advantageous in medieval Europe‚ it remains a practical skill for many‚ a criterion rather than a cultural requirement. Numerous medieval rulers and even Church prelates were uneducated; however‚ they were urbane or civilized‚ for they had appointed scribes and readers. The significance of literacy as a sensible qualification is shown in the laws formulated by an archbishop of York in 1483 for a university
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Viking Impact on Northern Europe When we hears the term Viking an immediate image of bloodthirsty men with long beards and horned helmets is conjured up in our minds. This is the image the historical sources have given us‚ and it is partly true. Vikings were merciless when raiding‚ but they were peaceful when they traded. Their navigational technology was exceptional‚ and the ones who settled in foreign lands contributed greatly to the lands’ culture. The Vikings are famous for their violent
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The Impact that the renaissance made on Europe Jacob Burckhardt best describes the renaissance as the prototype of the modern world‚ for it was the period between the fourteenth and fifteenth century in Italy‚ when the base of modern civilisation was formed. It was mainly through the revival of ancient learning that new scientific values first began to overthrow traditional religious beliefs. People started to accept a new rational and objective approach to reality and most important of all to rediscover
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Amber Muni Industrial Revolution Essay Period 2 12/27 The Industrial Revolution had a significant impact on Western society and the effects were numerous and mainly positive. The Industrial Revolution began in England in the 1790’s and spread throughout Europe and eventually to America. The extensive effects of the Industrial Revolution influenced almost every aspect of daily life and human society in some way. During this time period‚ widespread transportation such as railroads became available
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