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Across 3. a single continuous body of seawater 6. mountain with the greatest total height from base to top 9. also called the Southern Ocean, found south of 50 degree south latitude 10. mountain with the highest elevation 11. smaller, shallower than an ocean; partially enclosed by land 12. deepest trench in the world, 36,161ft

Down 1. largest ocean, can fit all of the continents in it 2. permanent layer of sea ice covers this ocean 4. A submersible that explored the deepest trench 5. ocean found south of the equator 7. named after Atlas, 2nd largest ocean 8. a sea that means "middle" and "land"