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53 Cards in this Set
- Front
- Back
What is a polar molecule? |
a molecule with a positively and negatively charged ends |
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The colligative properties of seawater are ________. |
charecteristics caused by the dissolved solids in seawater |
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The higher the salinity the ______ the density. |
higher |
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________ can control the water concentration in their cells. The water concentration in the cells of ________ changes with the salinity of the surrounding seawater. |
Osmoregulators, Osmoconformers |
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The ______ system is most often used in science to measure temperature |
Celsius |
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What is the heat capacity of water? |
1.00 calories per gram |
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The tendency for water to resist temperature change is called _______ ________. It is one of the factors in establishing ______________. |
Thermal inertia, Thermal equilibrium |
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The ocean is stratified with _____ layers below __________ layers. |
Denser, Less dense |
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The thermocline is the boundary between layers of water with differing ________. |
temperatures |
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The advantage of being an endotherm is ___________________. |
it allows the organism organism to live with wider temperature ranges |
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Buoyancy affects marine organisms by ___________. |
minimizing the effects of their weight |
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The layer of the atmosphere next to the ground is the _________. The layer that extends into space is the _______. |
Troposphere, Thermosphere |
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Convection is caused by _____________. |
warm air rising and cold air flowing in to replace it |
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A monsoon is _________________. |
a local seasonal weather pattern that causes winters to be very dry |
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There are __ gyres found in _____________. |
5, each major ocean basin |
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A countercurrent is a ____________. An undercurrent is a _________________. |
Opposite direction of adjacent current, Current that runs in opposite direction and beneath a surface current |
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Without currents, the world's climates would be __________. |
more extreme |
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The theory of continental drift says that ___________________________. |
all of the continents were once one continent that broke up and drifted apart over hundreds of millions of years ago |
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Sonar contributed to information about the ocean bottom by ________ _________________. |
giving scientists a way to map the bottom terrain |
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According to the theory of seafloor spreading, new seafloor __________ due to ________________. |
Emerges from the rift valley, Magma pushing up from the asthenosphere |
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According to the theory of plate tectonics, over the next millions of years _______________. |
a new ocean will form in the East Africa Rift Valley |
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The ozone layer is vital to life on Earth because _______________. |
it protects us from ultraviolet radiation |
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ENSO events seem to correlate with ________________. |
coral bleaching |
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Scientists estimate that about __% of the world's coral reefs has been destroyed. |
25 |
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So far, radioactive material has _________________. |
no noted widespread effects ok marine life |
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Heated water can be a pollutant because ___________________. |
raises temperature above tolerance of organisms |
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The Marine Protection Research and Sanctuaries Act granted the US federal government the power to ___________________. |
designate coastal zones for research, protection, and recreation |
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What is salinity? |
all the inorganic dissolved solids in seawater |
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Aside from hydrogen and oxygen, the most abundant chemical in seawater is ____________. |
chloride |
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____________ transport is the movement of materials through diffusion. _______________ transport requires energy to move materials from areas of low concentration to areas of high concentration. |
Passive, Active |
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Heat is ________________________, and temperature is ____________________. |
Kinetic energy in random movement or vibration of individual atoms and molecules in a substance,Measure of how fast molecules and atoms in a substance move(vibrate) |
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Heat capacity is _____________________. |
how much heat energy it takes to raise one gram of a substance 2°C |
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Water becomes ______________ as it freezes. This is _____________ most substances. |
Less dense, Different from |
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Low temperature and high salinity make make seawater _______ dense. |
more |
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The surface zone accounts for approximately __ percent of the ocean's volume. |
2 |
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Particles in water _________ light, and water ____________ light, turning it into heat. |
Absorb and scatter, Absorbs |
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Sounds travels through water __________ in air. |
about x5 faster than |
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Air is about __% nitrogen. |
78 |
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About _% of the sunlight that reaches the top of the atmosphere is absorbed by the Earth's surface. |
50 |
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The Coriolis Effect is caused by _____ ___________. |
rotation of the Earth |
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Cyclones form where _______________ ________________. |
wind is drawn into a low-pressure area at the Earth's surface, forming a spiral pattern |
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Gyres are called __________ currents. The tend to flow ____________________ ___________________. |
Geostrophic, Clockwise in the Northern Hemisphere an counterclockwise in the Southern Hemisphere |
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An undercurrent runs _________ an adjacent current. The reason why it forms is _______. |
Beneath, Unclear |
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The ocean conveyer belt is important because __________________. |
redistributes heat and moderates Earth's climate |
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Pangaea is the theorized ____________ __________. Panthalassa is the theorized ___________________. |
Single continent hundreds of millions of years ago, Single sea surrounded it |
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A ______________ is an underwater mountain range with a ______________ running through the center of it. |
Mid-century ridge, Rift valley |
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One primary force that scientists think causes plates to move is ____________. |
convection |
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Most likely, the only real solution to the global warming problem is _____ _______________. |
to develop cost-effective alternatives to fossil fuels |
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According to estimates, more than __% of mangroves has been destroyed |
50 |
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Practices destructive to coral associated with capturing fish and fishing include _____________________ _______________. |
using dynamite and toxic substances to stun fish |
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Oil affects the environment by ______ ____________________________. |
changing organism behaviors contaminating food, fish, and sinking to the bottom |
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______________ cause(s) eutrophication. |
Nutrients and Fertilizers |
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Plastics enter the marine environment primarily ______________. |
by being dumped or lost there |