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Mesmerizing Video of Show How Earth’s Tectonic Plates Move Over 1.8 Billion Years In grade school, you likely learned that Earth's crust is split into tectonic plates. These plates move slowly each day, imperceptible to us, but they create such impressive and obvious features as the Himalayan mountains and the Mariana Trench. But the science of plate tectonics have a lot more to teach us than how
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