Question

Select the statement that is not accurate about convergent boundaries.
Select the statement that is not accurate about convergent boundaries.

During subduction, the continental plate is forced down into the mantle and melts.

Earthquakes, volcanoes, mountains, and volcanic islands are common along subduction zones.

Subduction occurs when an oceanic plate collides with a continental plate.

The andes mountains were caused by the collision of the nazca plate and the South American plate.

Answer 1

"During subduction, the continental plate is forced down into the mantle and melts." — this is not accurate.

Why: in subduction the denser oceanic plate is the one that sinks beneath the lighter continental plate. Continental crust is too buoyant to be forced deep into the mantle and melt; when two continental plates collide they tend to crumple and thicken to form high mountains (e.g., Himalaya), rather than subduct. Subduction-related melting and volcanism are caused by the subducting oceanic slab releasing water into the overlying mantle wedge, which lowers melting temperatures and produces magma.