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Oceans HMS
Term | Definition |
---|---|
Surface current | current on top, made from wind, moves in circles |
density current | currents on bottom, made from salt/temperature |
salinity | amount of salt in the ocean |
breaker | wave collapsing |
basin | low areas that filled with ocean water |
crest | top of wave |
trough | bottom of wave |
continental shelf | gradual slope lots of life |
continental slope | extends from the shelf to the bottom of the floor, big drop |
abyssal plain | flat seafloor deep |
mid-ocean ridge | new floor forms here, mountains |
trench | steep depression at a subduction zone |
photosynthesis | process where producers make energy from the sun |
chemosynthesis | process where producers make energy from nitrogen and sulfur |
plankton | marine organisms that drift in currents |
Nekton | animals that can actively swim |
Benthos | plants and animals living on the bottom of the seafloor |