Deep sea trenches are important features for plate tectonic studies because______ .
A) they are sites where the oceanic lithosphere is consumed into the mantle
B) they are sites where oceanic lithosphere is formed
C) they are sites where two plate move past each other horizontally
D) none of the above

Question

Quizplus · Accepted Answer

Deep sea trenches are important features for plate tectonic studies because they are sites where the oceanic lithosphere is consumed into the mantle, which is a key process in the theory of plate tectonics.

Deep Sea Trenches Are Important Features for Plate Tectonic Studies