Which of the following is a type of convergent plate boundary?

• A. Ocean-Continent Convergence
• B. Transform Boundary Convergence
• C. Mid-Ocean Ridge Divergence
• D. Continental Drift Divergence

Answer: (A)

Convergent boundaries occur where two tectonic plates move toward one another, often causing one plate to dive beneath the other (subduction) or to collide and uplift. Ocean-continental convergence is a classic example: the denser oceanic plate sinks beneath the lighter continental plate. This subduction creates a deep ocean trench offshore and melts part of the oceanic slab to form magma that feeds volcanic activity on the continental margin, building mountain ranges like the Andes and triggering strong earthquakes near the boundary. The other options describe boundary types that are not convergent: sliding past each other horizontally (transform), pulling apart and creating new crust at mid-ocean ridges (divergence), or the historical idea of continental drift, which isn’t a boundary type in modern plate tectonics.