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Question
Oceans are about four times as deep as mountains are high. At the bottom of the ocean areA) towering mountains, deep valleys, and deep trenches near the continental borders.
B) thick layers of basaltic crust at mid-ocean ridges that gradually thin near deep ocean trenches.
C) towering plutonic mountains created from volcanoes and fissures at oceanic ridge areas.
D) all of these
Answer
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Related questions
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