Devoir de Philosophie

Continent - geography.

Publié le 26/05/2013

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Continent - geography. I INTRODUCTION Continents Scientists believe that the continents formed from lava flowing to the earth's surface from the planet's molten core. Once at the surface, the lava solidified into a crust, which broke into sediments under the stress of weathering. These sediments formed, broke down, and reformed numerous times, affected by hot gases rising from the earth's interior. Once hardened, the remaining sedimentary plateaus became the continents, which now cover about 30 percent of the earth's surface. © Microsoft Corporation. All Rights Reserved. - geography. Continent, one of the earth's largest continuous units of landmass. II CONTINENTAL GEOGRAPHY A continent is distinguished from an island or a peninsula not merely by greater size but also by geological structure and development (see below). The continents, in order of size, are Eurasia (conventionally regarded a...

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