Giving brainlist for corrrect

Tectonic Plate Boundaries

new sea floor
ocean ridges
old sea floor (found near trenches)

1. North American and EurasianPlates move away from each other
2. Molten rock rises from the mantle and fills the gap between plates
3. Magma hardens and forms a ridge along the boundary.

The earths crust is recycled at the ocean trenches.

Cause of he different elevations  hope this ?

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