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Neritic Zone

the first 200 meters (656 feet) of ocean water, which includes the seashore and most of the continental shelf

Oceanic Zone

extends from 200 meters (656 feet) deep all the way to the bottome of the ocean

Ocean trench

the deepest parts of the ocean

Photic Zone

the top layer of the ocean where sunlight penetrates

ROV (Remotely Operated Vehicle)

Unmanned equipment that is piloted using a joy stick and used on the ocean floor


the amount of dissolved solids in seawater

Scuba (Self-Contained Underwater Breathing Apparatus)

device that allows divers to breathe under water for long periods of time


a volcanic peak that rises at least 3,280 feet from the seafloor

SONAR (Sound Navigation Ranging)

used to measure ocean depth by sending sound to bounce off the ocean floor


small submarine used to explore the ocean depths


capable of continuing to meet the needs at the present without causing permanent damage in the future


the upward movement to the ocean surface of deeper, cold and usually nutrient-rich waters

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