Why Earth Has Two Levels

The video explores Earth's elevation range from Mount Everest to the Mariana Trench, highlighting the rarity of extreme elevations. Unlike Venus, Earth has a double-humped elevation distribution due to its crust's composition. The denser oceanic crust and less dense continental crust lead to unique elevation patterns. Plate tectonics play a crucial role, with oceanic plates subducting and continental plates forming mountains. If Earth had a normal distribution like Venus, only a small portion would be above sea level, emphasizing the uniqueness of Earth's surface.

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