| A | B |
|---|
| benthos | ocean life that lives on the ocean floor |
| nekton | ocean life that swims |
| plankton | ocean life that floats on waves |
| upwelling | cold nutrient rich water from deep rises to surface |
| thermocline | separates warm surface water from cold deep water |
| salinity | measure of how much is dissolved in water |
| mid ocean ridge | ridge formed on ocean floor where plates are spreading apart |
| seamount | mountain on ocean floor |
