extends from 200 meters deep all the way down to the bottom of the ocean
the deepest parts of the ocean
the top layer of the ocean where sunlight penetrates
a chemical process where plants and algae use a sun's energy to make sugars from carbon dioxide and water
the plant and algae component of the plankton
a living thing that produces its own food within itself, usually by using sunlight energy in photosynthesis
the amount of dissolved solids in seawater
a volcanic peak that rises at least 3280 feet from the floor
capable of continuing over a long period of time without causing permanent damage
the upward movement to the ocean surface of deeper, cold and usually nutrient-rich waters
animal component of the plankton that feed on phytoplankton and other zooplankton
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