The Mid-Oceanic Ridge is elevated above surrounding seafloor because it is made of hotter and less dense lithosphere than oceanic crust farther away from the divergent boundary.

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The Mid-Oceanic Ridge is a divergent boundary where new oceanic crust is formed. The lithosphere at the ridge is hotter and less dense than older oceanic crust farther away, causing it to be elevated above the surrounding seafloor.

The Mid-Oceanic Ridge Is Elevated Above Surrounding Seafloor Because It