work is to this very day. Wegener was convinced that all of Earth’s continents were once part of an enormous‚ single landmass called Pangaea. To describe continental drift & pangea‚ Wegner used geology‚ biology‚ and ecology; even though he was initially trained as an astronomer. Pangaea existed about 240 million
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neumerous discoveries were made which helped prove his idea of continental drift was true. In 1912‚ Wegener published this theory that a single continent existed about 300 million years ago. He named his super-continent Pangaea‚ and maintained that it had later split into the two continents of Laurasia in the north and Gondwanaland in the south. Today’s continents were formed from further splitting of these two masses. Wegener published this theory of continental drift and claimed that it was supported
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diversity we see present in modern day plants and animals. Through a process of speciation‚ the movement of the continents has had a generous role throughout evolution‚ effecting and distributing flora and fauna. The Earth’s continents were once one‚ a large supercontinent called Pangea that later separated into two smaller ones known as Gondwana and Laurasia. The separation and collision of continents has not only created some of the valleys and mountain ranges which are significant landmarks on the Earth’s
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Abstract When we look at our earth’s surface now it has seven continents‚ and five of them are divided by the oceans that surround them. In 1912 Alfred Wegner (1880-1930)‚ came up with a theory called the continental drift; stating that over three hundred years ago all seven continents were once one super continent called Pangaea. Wegner tried to convince other scientists and geologist for many years that the continents drifted apart; however he didn’t have the geological mechanism that was
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scientist‚ Alfred Wegener in the twentieth century. The theory explained that all the continents was once joined as one‚ and through the course of millions of years‚ drifted apart from each other to form separate continents as we see it now. THEORY Before all the continents were separated‚ they existed as one supercontinent‚ Pangaea (Lovett‚ 2008)‚ surrounded by a super ocean‚ known as Panthalassa. Movement of continents can be compared to the movement of icebergs on water. This is because earth is liquid
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crown. After they split up as 2 countries fuelling this rivalry‚ both countries claimed the whole of South America as colonial possession. Pope has to intervene to stop any Christian blood from spilling. He drew a N-S (vertical) line on the map of continent‚ giving the east half to Portugal and west half to Spain. So‚ Brazil became Portuguese and the rest Spanish. This rivalry was vigorous in maritime navigation and Cartography. This rivalry was responsible for the dichotomy of (Lusitania) versus the
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two decidedly individual continents.
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Gaia (Γαῖα) meaning "Earth". The name was coined during a 1927 symposium discussing Alfred Wegener’s theory of continental drift. In his book The Origin of Continents and Oceans (Die Entstehung der Kontinente und Ozeane)‚ first published in 1915‚ he postulated that before later breaking up and drifting to their present locations‚ all the continents had at one time formed a single supercontinent which he called the "Urkontinent".[4] The forming of supercontinents and their breaking up appears to have
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Pan-Africanism‚ race and a social constructed Africa Based on culture‚ identity and world view: slavery‚ slave trade and the African Diaspora Pan-Africanism‚ race and a social constructed Africa ‘What is Africa to me? Once I should have answered the question simply: I should have said "fatherland" or perhaps better "motherland" because I was born in the century when the walls of race were clear and straight in the United States.’ (Du Bois:1968‚ 115) This citation describes the Pan-Africanist
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that the Earth’s continents were once joined together‚ but gradually moved apart over millions of years. It offered an explanation of the existence of similar fossils and rocks on continents that are far apart from each other. But it took a long time for the idea to become accepted by other scientists. In this Wegener put forth his explanation for the formation of mountain ranges. Wegener noticed that mountain ranges occurred as narrow bands predominantly at the edge of continents. He thus concluded
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