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Sแป trang: 64 trang, bรฌa cแปฉng, lแปi viแบฟt chแปฏ chi tiแบฟt xem hรฌnh
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The book is about the planet Earth, describing its formation; its internal structure; its tectonic movements; how scientists study it; and its landforms such as volcanoes, earthquakes, mountains, and canyons.
59.000VND