Question

which events most likely occurred at the boundary between the south american plate and the nazca plate? check all that apply. destruction of crust creation of rift valleys formation of a trench separation of two plates subduction of one plate

Explanation:

The South American Plate (continental) and Nazca Plate (oceanic) form a convergent boundary. At convergent boundaries:

• Oceanic crust (Nazca) subducts under continental (South American), causing crust destruction (as subducted crust is recycled).
• Trenches form at subduction zones (oceanic plate bends down).
• Subduction of one plate (Nazca under South American) occurs.
• Rift valleys and plate separation happen at divergent boundaries, not convergent, so those are eliminated.

Answer:

• destruction of crust
• formation of a trench
• subduction of one plate