Multiple Choice
The mid-ocean ridges are elevated above the surrounding sea floor because ____________.
A) ridge rocks are hot and therefore of relatively low density
B) the lithospheric plates are thickest at the ridges so they stand up taller
C) rising ocean currents leave a vacuum above the ridge
D) ridge rocks are mafic,whereas the ocean basin crust consists of ultramafic rock
Correct Answer:
Verified
Correct Answer:
Verified
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