"Continental drift" hypothesis that states that the continents were once one large mass that broke apart.
The continental drift hypothesis was created in the early piece of the twentieth century, for the most part by Alfred Wegener. Wegener said that mainlands move around on Earth's surface and that they were once consolidated as a solitary supercontinent. While Wegener was alive, researchers did not trust that the mainlands could move.
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a
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planting vegetation barriers
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Physical geography is the study of the physical characteristics of the earth, how those characteristics interact with and relate to each other, how they are ... Cultural geography is also called human geography since it does have to ... all the physical characteristics, can affect the way cultures live
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Photosynthesis is fueled by the sun.
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solitamente le grandi masse di migranti sfuggono da il loro paese di origine a causa di scarsa occupazione lavorativa e vanno verso nuove terre in cerca di migliori condizioni