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23 Cards in this Set
- Front
- Back
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salinity
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containing or impregnated with salt
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sonar
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a system for the detection of objects under water and for measuring the water's depth by emitting sound pulses and detecting
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seamount
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a submarine mountain
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trench
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a long, narrow ditch
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continental slope
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the slope between the outer edge of the continental shelf and the deep ocean floor
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continental shelf
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the area of seabed around a large landmass where the sea is relatively shallow compared with the open ocean
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abyssal plain
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a large area of extremely flat or gently sloping ocean floor just offshore from a continent, at depths of 13,000-20,000 feet
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mid-ocean ridge
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a long, seismically active submarine ridge system situated in the middle of an ocean basin and marking the site of the upwelling of magma associated with seafloor spreading
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wave
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move one's hand to and fro in greeting or as a signal
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wavelength
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the distance between successive crests of a wave, esp. points in a sound wave or electromagnetic wave
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frequency
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the rate at which something occurs or is repeated over a particular period of time or in a given sample
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wave heights
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the rate at which something occurs or is repeated over a particular period of time or in a given sample site
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tsunami
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a long high sea wave caused by an earthquake
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longshore drift
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the movement of material along a coast by waves that approach at an angle to the shore but recede directly away from it
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rip current
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a relatively strong, narrow current flowing outward from the beach through the surf zone and presenting a hazard to swimmers
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groin
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a curved edge formed by two intersecting vaults
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intertidal
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denoting the area of a seashore that is covered at high tide and uncovered at low tide
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neritic zone
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shallow marine environment extending from mean low water down to 200-metre (660-foot) depths, generally corresponding to the continental shelf
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open-ocean zone
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In deep water, the pelagic zone is sometimes called the open-ocean zone and can be contrasted with water that is near the coast or on the continental shelf
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plankton
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the small and microscopic organisms drifting or floating in the sea or fresh water, consisting chiefly of diatoms, protozoans, small crustaceans, and the eggs and larval stages of larger animals
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nekton
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aquatic animals that are able to swim and move independently of water currents. Often contrasted with plankton
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benthos
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the flora and fauna found on the bottom, or in the bottom sediments, of a sea, lake, or other body of water
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food web
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a system of interlocking and interdependent food chains
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