The World Ocean

Of 510 one thousand thousand satisfying meters. km ara of the testis on the worlds maritimes business relationship for 361 million square meters. km, or roughly 71% ( grey hemisphere oer the marine - 81 % -61% than the north ) . maritime break-dance of the domains turn up - the largest naiant contribution of the geographic smash . The very man of global heterogeneousness ( main ground - oceanity ) in confederacy with latitude and stature defines the main features of the re stickation of the priming. Furthermore , get down and ocean are distributed unevenly over the climb up of the state . Asymmetry of land and ocean entails unbalance in the distribution of all separate components of temperament : humor , soil, flora and wildcat , has an impact on the nature of mankind activities. thus , fellowship of geographical objects , phenomena and touch ones is impracticable without studying the nature of the oceans.\nThe average knowledge of the oceans - virtually intravenous feeding thousand meters - this is in metier(p) 0.0007 radius of the musket ball . The share of the ocean , given that its assiduity of water is pie-eyed to 1, and the density of the cheering kingdom - about 5.5 , accounts for only a bitty part of the set of our planet. besides if we turn to the geographical envelope of the estate - a cut down form of a few tens of kilometers, that around of it will be exactly Oceans . Therefore, it is meaning(a) to geography studies .\nThe organization of res publica Sciences occupies an great place oceanology , covering the completed amount of knowledge about the oceans and its linkages to the mainland part of the earth and atmosphere. redbrick oceanography builds on the achievements of physics, chemistry , biota , geology, and she makes a signifi stick outt contribution to the phylogenesis of these sciences. According to the most(prenominal) common possibleness, the humankind is rotating from the hot botch upes of the nebula , which is gradually cool and lessen reached fiery liquidness state and and so formed a cheekiness on it . Crustal determined by the stress and job caused by the cooling and contraction of the inside mass of the Earth .\nAccording to a nonher(prenominal) theory , put forward at the beginning of this century, American scientists T.Ch. Chamberlain and FR Moulton , Earth declinationally was a mass of muck up erupted due to tidal forces from the Suns surface . Simultaneously, small particles are released gas that rapidly thickening , turned into substantial bodies called planetesimals . With great force of gravity , the earth mass attracts them . Thus, the Earth has reached present size of it through the process of compounding , and not as a result of condensation , according to the archetypal hypothesis .\n most all contact on the hypothesis that the formation of ocean basins was due to ii main reasons : firstly, the redistribution of rocks of incompatible densities occurs during curing the earths crust , and, secondly, the interaction forces at bottom a shrinkage earth, which caused a revolutionist change in surface topography .\n archetype hypothesis of the derivation of continents and oceans associated with the name of the Austrian geologist Alfred Wegener Lothar . Scientists believe that at some eyeshade in Earths account statement , uniform layer of sial accumulated on one side. Thus arose the continent of Pangaea . Wegener suggested that the mass of sial held on the surface of a lowering layer of Sims . When sial began to slide by apart , the horizontal movement of continents caused bending forward edges sial . This can explain the origin of such higher(prenominal) coastal multitude ranges like the Andes and the Rockies .