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Earths outermost layer is broken into about 13 principal plates, each of them carrying a continent, a part of an ocean, or both. These plates float on the magma in Earths mantle. This phenomenon is the central idea behind a theory called plate tectonics. According to the theory, several of the features on the planets surface can be explained by the movement of the plates. For instance, mountain ranges form where two plates collide, and faults form when two plates move apart or slide against each other. Plate tectonics also helps to explain the theory of continental drift, proposed by German scientist Alfred Wegener in 1912.

Earths outermost layer is broken into about 13 principal plates, each of them carrying a continent, a part of an ocean, or both. These plates float on the magma in Earths mantle. This phenomenon is the central idea behind a theory called plate tectonics. According to the theory, several of the features on the planets surface can be explained by the movement of the plates. For instance, mountain ranges form where two plates collide, and faults form when two plates move apart or slide against each other. Plate tectonics also helps to explain the theory of continental drift, proposed by German scientist Alfred Wegener in 1912.
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Earths outermost layer is broken into about 13 principal plates, each of them carrying a continent, a part of an ocean, or both. These plates float on the magma in Earths mantle. This phenomenon is the central idea behind a theory called plate tectonics. According to the theory, several of the features on the planets surface can be explained by the movement of the plates. For instance, mountain ranges form where two plates collide, and faults form when two plates move apart or slide against each other. Plate tectonics also helps to explain the theory of continental drift, proposed by German scientist Alfred Wegener in 1912.
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Taille de l'image:
3952 x 2568 px | 29.0 MB
Taille d'impression:
33.5 x 21.7 cm | 13.2 x 8.6 in (300 dpi)
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