Which term describes the boundary where the oceanic plate subduces into the mantle?

Which term describes the boundary where the oceanic plate subduces into the mantle?

• A. Strike rate
• B. Subduction zone
• C. Surface currents
• D. Sima

Answer: (B)

Subduction zones are the boundaries where an oceanic plate sinks beneath another plate into the mantle. This happens because oceanic crust is denser than the mantle, so it bends downward at these zones, often creating deep ocean trenches and volcanoes. SIMA refers to the composition of oceanic crust, not the boundary itself, while surface currents describe movement of water at the surface. So the boundary described is a subduction zone.

Subduction zones are the boundaries where an oceanic plate sinks beneath another plate into the mantle. This happens because oceanic crust is denser than the mantle, so it bends downward at these zones, often creating deep ocean trenches and volcanoes. SIMA refers to the composition of oceanic crust, not the boundary itself, while surface currents describe movement of water at the surface. So the boundary described is a subduction zone.