movement of these form major features of the ocean floor such as trenches, the continental shelf, the continental slope, the abyssal plain, and the mid-ocean ridge
What is Earth's plates
100
a measure of dissolved salts in water
What is salinity
200
the size of a wave depends on these two things
What is strength of the wind and the length of time it blows
200
algae can only live in parts of the ocean where there is enough of this to allow them to carry out photosynthesis
What is sunlight
200
hills of wind-blown sand that help to prevent beach erosion
What is sand dunes
200
a long, deep canyon on the ocean floor
What is a trench
200
as you descend through the water column, temperature
What is decreases
300
as a wave travels along, water particles move this way
What is a circular path
300
benthos live here
What is on the ocean floor
300
the roots of dune plants hold sand in place
What is how dunes reduce beach erosion
300
a volcanic mountain rising from the ocean floor but doesn't reach the surface
What is a seamount
300
the part of the ocean that extends from low-tide line to the edge of the continental shelf
What is neritic zone
400
waves transfer energy, NOT
What is matter
400
dolphin, angler fish, and a shark are examples
What is nekton
400
a short wall built to reduce erosion along a strip of beach
What is a groin
400
a broad area covered with thick layers of mud and silt
What is the abyssal plain
400
the deepest and darkest area of the ocean, that is beyond the continental shelf
What is open-ocean zone
500
most waves form when energy is transferred to water from this
What is winds
500
this organism is the base of most open-ocean food webs
What is plankton
500
a rush of water that flows rapidly back to sea through a narrow opening
What is rip current
500
formed when divergent plates pull-apart, lava erupts, and forms new ocean floor
What is mid-ocean ridges
500
evaporation increases this in sea water, since the salt is left behind as the water evaporates