Question

a process in which two tectonic plates come together and one plate sinks below the other
oceanic crust
lithosphere
asthenosphere
trench
accretionary wedge
forearc
volcanic arc
backarc
continental crust
lithos
lithosphere
compaction
deposition
subduction
cementation

Explanation:

The question describes a process where two tectonic plates converge and one sinks below the other. Let's analyze each option:

• Compaction: Involves the compression of sediments, not related to tectonic plates sinking.
• Deposition: Is the laying down of sediments, not related to plate tectonics.
• Subduction: By definition, is the process where one tectonic plate moves under another and sinks into the mantle at a convergent boundary, which matches the description.
• Cementation: Is the process of binding sediments together to form rock, not related to plate movement.

Answer:

C. subduction