bacteria Flashcards
pacific ocean
the pacific ocean is the deepest and largest
Atlantic ocean
covers 20% of earths surface
Indian ocean
it holds 40% of the worlds oil
arctic ocean
is the smallest ocean and the shallowest
southern ocean
during winter half the ocean is covered by ice
Salinity
the measure of salt dissolved in water
surface zone
the top warm layer of the ocean that the sun hits.
Thermocline
the part of the ocean ware the temperature drops the fastest
deep zone
a huge part of he ocean that is cold and deep.
water cycle
the way the rain falls and evaporates
Evaporation
the sun dries up the water and evaporates in to gas
Condensation
changes the gas in to water again a cloud
Precipitation
when the rain falls from the clouds
continental shelf
the area of seabed around a large landmass where the sea is relatively shallow compared with the open ocean.
continental slope
the slope between the outer edge of the continental shelf and the deep ocean floor.
continental rise
an underwater feature found between continental slope
abyssal plain
an underwater plain in the deep ocean
mid-ocean ridge
A mid-ocean ridge is an underwater mountain system formed by plate tectonics.
rift valley
a large elongated depression with steep walls formed by the downward displacement of a block.
Seamount
a submarine mountain.
ocean trench
a large underwater ditch
Plankton
the small and microscopic organisms drifting or floating in the sea or fresh water.
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.
desalination
the process of removing salt from seawater.
