Earth's major systems | Middle school Earth and space science | Khan Academy
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Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! Earth’s atmosphere, geosphere, hydrosphere, and biosphere work together to shape every place on the planet. Volcanic eruptions formed the Hawaiian Islands, while water, air, and living things slowly changed them. This series of interactions among Earth’s major systems explains how landforms develop and h
