Which boundary is associated with crust creation at mid-ocean ridges?

• A. Divergent boundaries
• B. Convergent boundaries
• C. Transform boundaries
• D. Subduction zones

Answer: (A)

When tectonic plates move apart, mantle material rises into the gap and cools to form new crust. This creation of new crust at the spreading center is what happens at divergent boundaries, and mid-ocean ridges are the oceanic examples of these boundaries. In contrast, convergent boundaries involve collision and often subduction (crust is destroyed), while transform boundaries slide past one another with little or no new crust being formed. So the boundary associated with crust creation at mid-ocean ridges is Divergent boundaries.