OCEAN BOI'S Flashcards
UNDER DA SEA (25 cards)
Pacific ocean
the largest and deepest ocean
Atlantic ocea
the second largest
Indian ocean
the third largest ocean
Arctic ocean
The smallest
Southern ocean
The Southern Ocean, also known as the Antarctic Ocean or the Austral Ocean
Salinity
the saltiness or amount of salt dissolved in a body of water
surface zone
he surface layer of the ocean is known as the epipelagic zone and extends from the surface to 200 meters
Thermocline
a steep temperature gradient in a body of water such as a lake, marked by a layer above and below which the water is at different temperatures.
deep zone
The deep sea or deep layer is the lowest layer in the ocean, existing below the thermocline and above the seabed, at a depth of 1000 fathoms (1800 m) or more.
water cycle
This process is called condensation. Then, the water falls from the sky as rain, snow, sleet or hail. … The water sinks into the surface and also collects into lakes, oceans, or aquifers. It evaporates again and continues the cycle.
Evaporation
the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure.
Condensation
water which collects as droplets on a cold surface when humid air is in contact with it.
Precipitation
the action or process of precipitating a substance from a solution.
continental shelf
the area of seabed around a large landmass where the sea is relatively shallow compared with the open ocean. The continental shelf is geologically part of the continental crust.
continental slope
the slope between the outer edge of the continental shelf and the deep ocean floor.
continental rise
The continental rise is an underwater feature found between the continental slope and the abyssal plain.
abyssal plain
n underwater plain on the deep ocean floor, usually found at depths between 3,000 metres (9,800 ft) and 6,000 metres (20,000 ft).
mid-ocean ridge
where two tectonic plates are pulling apart
rift valley
a large elongated depression with steep walls formed by the downward displacement of a block of the earth’s surface between nearly parallel faults or fault systems.
Seamount
a submarine mountain.
ocean trench
Ocean trenches are long, narrow depressions on the seafloor. These chasms are the deepest parts of the ocean—and some of the deepest natural spots on Earth. … In particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plates meet.
Plankton
Plankton are the diverse collection of organisms that live in large bodies of water and are unable to swim against a current. … They provide a crucial source of food to many large aquatic organisms, such as fish and whales.
Nekton
aquatic animals that are able to swim and move independently of water currents.
Benthos
the flora and fauna found on the bottom, or in the bottom sediments, of a sea, lake, or other body of water.
