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11 Cards in this Set

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continental shelf
the shallow part of the ocean at the edge of the continents
continental slope
the edge of the continental shelf that extends steeply downward to the ocean floor
ocean basin
the floor of the deep ocean
trench
a deep, narrow valley in the ocean floor
ridge
the highest part of a chain of underwater mountains
current
a riverlike flow of water in the ocean
tide
the rise and fall of the surface level of the ocean
wave
the up and down movement of ocean water caused by the wind
light zone
the sunlit waters of the ocean
dark zone
the ocean water where sunlight does not reach
coral reef
a platform or ridge of coral at or near the ocean surface