| 41. | The alert was issued after a strong earthquake shook the sea floor near Peru.
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| 42. | An earthquake some 1, 200 years ago sent the city to the sea floor.
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| 43. | 4??cm of fossil sea floor, from the Bromide Formation.
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| 44. | The sea floor, 29 meters deep, is littered with debris.
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| 45. | It probably lived on and swum above the sea floor.
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| 46. | Motsak supervised the raising of the submarine from the Barents Sea floor last month.
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| 47. | Some experts say there are also potentially rich oil fields on the sea floor.
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| 48. | It could just be an anomaly in the sea floor.
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| 49. | Reudemannoceratids were probably lived on or near the sea floor.
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| 50. | The winghead shark usually hunts close to the sea floor.
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