| 11. | Freeh said he discussed the continuing recovery of wreckage from the ocean bottom.
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| 12. | He said foreign automakers resort to costlier measures, such as dredging the ocean bottom.
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| 13. | For almost three days, the team charted 2, 000-foot-wide swaths of ocean bottom nonstop.
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| 14. | The device scours the ocean bottom searching for metal readings.
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| 15. | Veneridae colonize the sandy ocean bottom, and their populations are often dense and large.
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| 16. | After nearly two hours of combing the ocean bottom, the researchers hit pay dirt.
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| 17. | The video screen shows a virtually unchanging picture of the greenish, sandy ocean bottom.
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| 18. | People for years have tried to figure out how to explore the ocean bottom.
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| 19. | On the ocean bottom, sand dollars are frequently found together.
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| 20. | His loyal crew bury him at the ocean bottom.
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