| 1. | Both targets are visible to sonar and resting on the sea floor.
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| 2. | They appear to be the same kind found underneath the sea floor.
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| 3. | Turbidity currents are often triggered by tectonic disturbances of the sea floor.
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| 4. | Normal tsunamis generated at sea result from movement of the sea floor.
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| 5. | Natural methane is found both below ground and under the sea floor.
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| 6. | After plugging in rough numbers for the sea floor, the equation becomes:
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| 7. | These are important for detecting their prey on the muddy sea floor.
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| 8. | Drilling holes in the sea floor is not like making sand castles.
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| 9. | Once fully ballasted, the hull was to sit on the sea floor.
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| 10. | They scavenge the organic matter on the sea floor and recycle it.
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