ConcepTest: Cross-Sections of Plate Boundaries
The correct response is A.
Percentage of students choosing this answer. (% Before Discussion/% After Discussion):
in a small (< 60 students) physical geology lab section
I asked for students to explain their reasoning. Those that answered B didn't notice or understand the divergent boundary off the coast. This question was a good way to discuss the reason for the convergent boundary off of WA coast and transform boundary of the CA coast.
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