Monday, September 16, 2013

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In 1910, a german scientist named Alfred Wegener hypothesized that Earths continents had travel. His hypothesis was that each(prenominal) the continents were at once joined together in a ace land mass and later bodgeed apart. The idea that continents moved easily across Earths outdoors became known as Continental drift. correspond to Alfred Wegener, the continents drifted together to category the supercontinent, or single landmass, Pangaea. Pangaea existed about ccc million old age ago. Over tens of millions of years, Pangaea began breaking apart. From several(predicate) scientific fields, Alfred Wegener ga in that locationd show up to support his hypothesis. He alike studied fossils, land features, and ancient climatical zones. His turn off from land features was that on some continents, chew ranges and coal beds transmission channel up. For example, mountain ranges on the east facial expression of southwestern America and west side of Africa line up. Wegeners show up from fossils is that fossils of organisms that couldnt travel bemuse been found in places now detached by the ocean. For example, lystrosaurus used to live in only in Africa and India. However, unspoiled now, lystrosaurus fossils have been found in Antarctica. A lystrosaurus couldnt have swam all the way from Africa or India to Antarctica. is a professional essay writing service at which you can buy essays on any topics and disciplines! All custom essays are written by professional writers!
Alfred Wegeners evidence from ancient climatic zones is that evidence from rocks shows that entropy Africa was once very cold. Geologists found scratches in rocks and till left behind glaciers. This shows that continental glaciers once cover South Africa. Wegener then came up with the idea that con! tinental drift moved South Africa away from the South Pole. Today with technology, which Wegener didnt have, we contumacious that there is no such thing as continental drift. A widely held theory that explains the movement of continents is plate tectonics. Subduction and sea-floor facing pages also cause continents to move. Other causes for continents to move are mid-ocean ridges, deep-ocean trenches, and convection currents in the...If you privation to get a full essay, order it on our website:

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