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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

The colligative properties of seawater are ________.

charecteristics caused by the dissolved solids in seawater

The higher the salinity the ______ the density.

higher

________ 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

The ______ system is most often used in science to measure temperature

Celsius

What is the heat capacity of water?

1.00 calories per gram

The tendency for water to resist temperature change is called _______ ________. It is one of the factors in establishing ______________.

Thermal inertia, Thermal equilibrium

The ocean is stratified with _____ layers below __________ layers.

Denser, Less dense

The thermocline is the boundary between layers of water with differing ________.

temperatures

The advantage of being an endotherm is ___________________.

it allows the organism organism to live with wider temperature ranges

Buoyancy affects marine organisms by ___________.

minimizing the effects of their weight

The layer of the atmosphere next to the ground is the _________. The layer that extends into space is the _______.

Troposphere, Thermosphere

Convection is caused by _____________.

warm air rising and cold air flowing in to replace it

A monsoon is _________________.

a local seasonal weather pattern that causes winters to be very dry

There are __ gyres found in _____________.

5, each major ocean basin

A countercurrent is a ____________. An undercurrent is a _________________.

Opposite direction of adjacent current, Current that runs in opposite direction and beneath a surface current

Without currents, the world's climates would be __________.

more extreme

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

Sonar contributed to information about the ocean bottom by ________ _________________.

giving scientists a way to map the bottom terrain

According to the theory of seafloor spreading, new seafloor __________ due to ________________.

Emerges from the rift valley, Magma pushing up from the asthenosphere

According to the theory of plate tectonics, over the next millions of years _______________.

a new ocean will form in the East Africa Rift Valley

The ozone layer is vital to life on Earth because _______________.

it protects us from ultraviolet radiation

ENSO events seem to correlate with ________________.

coral bleaching

Scientists estimate that about __% of the world's coral reefs has been destroyed.

25

So far, radioactive material has _________________.

no noted widespread effects ok marine life

Heated water can be a pollutant because ___________________.

raises temperature above tolerance of organisms

The Marine Protection Research and Sanctuaries Act granted the US federal government the power to ___________________.

designate coastal zones for research, protection, and recreation

What is salinity?

all the inorganic dissolved solids in seawater

Aside from hydrogen and oxygen, the most abundant chemical in seawater is ____________.

chloride

____________ 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

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)

Heat capacity is _____________________.

how much heat energy it takes to raise one gram of a substance 2°C

Water becomes ______________ as it freezes. This is _____________ most substances.

Less dense, Different from

Low temperature and high salinity make make seawater _______ dense.

more

The surface zone accounts for approximately __ percent of the ocean's volume.

2

Particles in water _________ light, and water ____________ light, turning it into heat.

Absorb and scatter, Absorbs

Sounds travels through water __________ in air.

about x5 faster than

Air is about __% nitrogen.

78

About _% of the sunlight that reaches the top of the atmosphere is absorbed by the Earth's surface.

50

The Coriolis Effect is caused by _____ ___________.

rotation of the Earth

Cyclones form where _______________ ________________.

wind is drawn into a low-pressure area at the Earth's surface, forming a spiral pattern

Gyres are called __________ currents. The tend to flow ____________________ ___________________.

Geostrophic, Clockwise in the Northern Hemisphere an counterclockwise in the Southern Hemisphere

An undercurrent runs _________ an adjacent current. The reason why it forms is _______.

Beneath, Unclear

The ocean conveyer belt is important because __________________.

redistributes heat and moderates Earth's climate

Pangaea is the theorized ____________ __________. Panthalassa is the theorized ___________________.

Single continent hundreds of millions of years ago, Single sea surrounded it

A ______________ is an underwater mountain range with a ______________ running through the center of it.

Mid-century ridge, Rift valley

One primary force that scientists think causes plates to move is ____________.

convection

Most likely, the only real solution to the global warming problem is _____ _______________.

to develop cost-effective alternatives to fossil fuels

According to estimates, more than __% of mangroves has been destroyed

50

Practices destructive to coral associated with capturing fish and fishing include _____________________ _______________.

using dynamite and toxic substances to stun fish

Oil affects the environment by ______ ____________________________.

changing organism behaviors contaminating food, fish, and sinking to the bottom

______________ cause(s) eutrophication.

Nutrients and Fertilizers

Plastics enter the marine environment primarily ______________.

by being dumped or lost there