The changing land
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Earth's surface is always changing. Gravity, wind, and water erode rock. Tectonic plates slowly moving on the mantle also cause Earth's surface to change. The thrust up mountains and gouge out valleys.
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Earth's surface is always changing. Gravity, wind, and water erode rock. Tectonic plates slowly moving on the mantle also cause Earth's surface to change. The thrust up mountains and gouge out valleys.
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"Earth's surface is always changing. Gravity, wind, and water erode rock. Tectonic plates slowly moving on the mantle also cause Earth's surface to change. The thrust up mountains and gouge …"
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