Alat, Alon, at Hangin (part 2) Flashcards
largest anoxic basin in the world
black sea
The amount of heat gained has to be roughly equal to the amount lost or else there would be __
Global Warming
equivalent amount of heat energy is re-radiated back into space, but accumulation of certain gases, called _, such as carbon dioxide, methane, and chlorofluorocarbons (CFCs), in the atmosphere can prevent heat energy from radiating back to space.
greenhouse gases
examples of greenhouse gases
carbon dioxide
methane
chlorofluorocarbon (cfc)
temperature pertains to…
- amount of energy absorbed at the sea’s surface
- loss of heat by evaporation
- transfer of energy into or out by ocean
currents - warming or cooling of atmosphere
- heat lost from the sea back to space by radiation
True or False:
If seawater weren’t transparent, there
would be little photosynthesis in the sea,
and then only right at the surface
True
Clear ocean water is most transparent to
.
blue light
Things that appear red on the surface look
_ at depth because there is no
red light to reflect off them and be seen
gray or black
Transparency is strongly affected by
suspended or dissolved
material
Large quantities of _ also reduce
water transparency.
plankton
Water near coasts often contains a lot of
material brought in by rivers that gives
coastal waters a _ and makes
them less transparent than the deep blue
waters of the open ocean
greenish tint
Organisms on land are under _ at sea level—the weight of all the air above them
1 atmosphere of pressure
pressure in marine organisms
under weight of sea and atmosphere
True or False:
The pressure increases dramatically with depth because the
amount of water above gets greater
True
True or False
the saltier the water, the densier it is
True
The density of seawater depends on both its _ and its _
temperature & salinity
Temperature in the open ocean varies between about
-2 and +30 deg celsius (28-86 F)
True or False:
Temperatures below 0 °C (32 °F) are not possible because salt water freezes at a colder temperature than pure water
False
possible, salt water freezes at colder temp
Density is usually controlled more by _ than salinity.
temperature
True or False:
Density is usually controlled more by temperature than salinity.
True
True or False
Density is usually controlled more by salinity than temperature.
False
controlled more by temperature than salinity
What are the different sampling techniques to measure temperature and salinity
Niskin bottle
CTD
Satellite
NOAA
agency that enriches life through science; surface of the sun to ocean floor
NOAA (National Oceanic and Atmospheric Administration)
