Which statement accurately describes one aspect of plate tectonics that involves subduction and seafloor spreading?

At subduction zones, older, denser oceanic crust sinks beneath another plate and is recycled into the mantle, where it can melt. Seafloor spreading creates new crust at mid-ocean ridges, not along continental coastlines. The movement of plates through spreading and subduction also moves continents, so A is the accurate statement.

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