What is the difference between an oceanic rift and an oceanic trench?
A. Rifts are where ocean crust is destroyed, and trenches are where ocean crust is created.
B. Rifts mark divergent boundaries; trenches mark convergent boundaries.
C. Rifts are younger than trenches.
D. Rifts are deeper than trenches.
E. There is no difference; they are just two different names for the same feature.
Answer: B
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