Maciej Frolow/ Photographer’s Choice RF/ Getty Images The Earth’s crust is an extremely thin layer of rock‚ like the skin of an apple in relative terms. It amounts to less than half of 1 percent of the planet. But the crust is exceptionally important‚ and not just because we live on it. The crust can be thicker than 80 kilometers in some spots‚ less than one kilometer in others. Underneath it is the mantle‚ a layer of rock some 2700 kilometers thick that accounts for the bulk of the Earth. The
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The social and economic significance of tourism development on a global scale After studying and understanding how deeply tourism development has significantly impacted on the world‚ I have noticed how closely that the social and economic factors are related‚ and how both of these aspects have direct effect on both tourists‚ and the people that permanently reside at destinations that have been extremely popular amongst tourists. The understanding of how economic and social factors interrelate
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poorest continent in the world. This could be explained by a lot of different things. One of the main reasons is that the country has always (since the Africa’s colonization by the European) been dependant of the donations and help of Western countries. To illustrate this point‚ we can just watch the number and see that during the last 50 years Africa received $400 billion of Aids‚ with no significant results. The fact that a lot of money has been sent to Africa and that the continent is still
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much thought‚ he proposed in 1960 that the movement of the continents was a result of sea-floor spreading. It was possible‚ he said‚ that molten magma from beneath the earth ’s crust could ooze up between the plates in the Great Global Rift. Also Hess proved Wegener ’s basic idea right. The continents are attached to the plates and do not move independently of them. But the plates themselves shift and change shape‚ carrying the continents along. How is this done? The large lumps of rock that make
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picture steaming jungles and gorillas. Hollywood films have shrunk the public image of this immense‚ varied continent into a small segment of its actual diversity. To have a more accurate picture of the whole continent‚ however‚ one should remember that there are‚ roughly‚ three Africas‚ each with its distinct climate and terrain and with a style of life suited to the environment. The continent can be divided into the northern desert areas‚ the southeastern grasslands‚ and the tropical jungles to the
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Sudan is the largest country in Africa‚ and is one of the poorest. It is located in the northeastern part of the continent. It is mainly made up of two regional groups: an Arab African group in the north and the Nilotes in the south. It’s major ethnic groups of the north are the Kababish‚ a camel raising people; the Jaalin and Saiqiyya‚ who live along rivers ; the Nubians‚ who live along the northern Nile; the Nuba of the Kordufan Plateau; and the Fur in the west. In the south there
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of the African Union (AU) can be described as an event of great magnitude in the institutional evolution of the continent. On 09 September 1999‚ the Heads of State and Government of the Organisation of African Unity (OAU) issued a Declaration (the Sirte Declaration) calling for the establishment of an African Union‚ with a view‚ to accelerating the process of integration in the continent to enable it play its rightful role in the global economy while addressing multifaceted social‚ economic and political
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Abstract AbstractAbstractAbstractAbstract Abstract 18 days‚ 18 days‚ 18 days‚ 18 days‚ 18 days‚ 18 days‚ 850+ martyrs‚ 0+ martyrs‚ 0+ martyrs‚ 0+ martyrs‚ 0+ martyrs‚ 0+ martyrs‚ 6500+ injured are all the quantitative facts of one side 25 00+ injured are all the quantitative facts of one side 2500+ injured are all the quantitative facts of one side 2500+ injured are all the quantitative facts of one side 25 00+ injured are all the quantitative facts of one side 2500+ injured are all the quantitative
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Tectonics: The Beginning (slides 3 and 4) Layers of the Earth (slides 5 and 6) Standard 8-3.1 What are Tectonic Plates- movement? (slides 7 and 8) Standard 8-3.6 Tectonic Plate boundaries (slides 9-21) 1. Convergent boundary Ocean-continent (slide 10) Continent-continent (slide 11) Oceanic-oceanic (slide 12) Volcanism (slide 13) 2. Divergent boundary Sea-floor spreading (slide 14) The Mid-Atlantic Ridge (slide 15) Sea-floor Exploration and Age Dating (slides 16-19) 3. Transform Boundary (San Andreas
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As the feat of human space travel became more and more challenging humans began to use sleeper ships. These sleeper ships were mostly used to travel the solar system. In very rare occurrence these sleeper ships went off course. Most of these ships were recovered‚ but one such ship drifted so off course that it could not be recovered. The name of the ship was the Blue Raccoon. The number of passengers was twenty. It went off course while going on‚ what should have been‚ a routine trip to mars. On
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