Why is basaltic oceanic crust linked with recycling in plate tectonics?

Correct answer: Because its greater density allows it to subduct into the mantle at convergent plate boundaries

Basaltic oceanic crust, especially when it becomes old and cool, is denser than continental crust. At a convergent plate boundary, it can subduct beneath a less dense plate and descend into the mantle, where its material may take part in melting and magma-forming processes. This is why it is associated with crustal recycling in plate tectonics. Option B is incorrect because oceanic crust is generally denser, not lighter, than continental crust. Exam tip: link greater density and a convergent boundary with subduction.