Plate Tectonics Is Like a "Conveyor Belt," with New Material

Multiple Choice

Plate tectonics is like a "conveyor belt," with new material created at _____, and old material recycled back into the mantle at _____. ​

A) trenches; subduction zones
B) mid-ocean ridges; subduction zones
C) convergent boundaries; subduction zones
D) subduction zones; mid-ocean ridges
E) mid-ocean ridges; rift zones