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6 Cards in this Set
- Front
- Back
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Mid-Atlantic Ridge
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undersea mountain range with a steep,narrow valley alng its center
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Continental drift
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a drift of the continets
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Mid-ocean ridges
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system of undersea mountain ranges that wind around the earth
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Pangea
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single landmass thought to have been the orgin of continents"all lands"
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Panthallassa
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"all seas"giant ocean
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Sea floor spreading
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movement of the ocean floor awat from either side of a mid-ocean ridge.
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