What happens to the water at the ocean's surface as it moves from the equator toward the Arctic Ocean?

The water cools, causing its density to increase

How does upwelling affect biodiversity?

It increases biodiversity by increasing nutrients at the surface.

How does upwelling provide nutrients for Earth’s oceans?

Nutrients are taken off the ocean floor and moved to the ocean surface

How does upwelling provide the needed materials to support life forms?

Upwelling brings nutrients from the ocean floor to the ocean surface

Which are the main sources of oxygen in ocean water?

the atmosphere and marine algae

In the event upwelling occurs along a shore, which will most likely happen?

There will be an increase in aquatic life.

Which describes the conditions life forms must adapt to in deep ocean environments?

They must adapt to low temperatures, high salinity, and no sunlight.

Which best describes the source of oxygen in ocean water?

oxygen is produced by marine plants in the process of making food

Why is the surface temperature of the ocean usually greater than the temperature on the ocean floor?

The surface of the water receives more sunlight

Which best explains why the surface zones of the ocean have the highest amount of dissolved oxygen?

The area has more sun which allows organisms to undergo photosynthesis

Choose the correct statement that explains the relationship between the temperature, salinity, and density of water.

Lower temp and higher salinity making water more dense, causing it to sink

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Duplicate of Ocean (ESS.8.2.2) Review

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Answers

1
What happens to the water at the ocean's surface as it moves from the equator toward the Arctic Ocean?
The water cools, causing its humidity to increase
The water cools, causing its density to decrease
The water cools, causing its density to increase
The water cools, causing its humidity to increase
2
How does upwelling affect biodiversity?
It decreases biodiversity by increasing nutrients at the surface.
It increases biodiversity by decreasing nutrients at the surface.
It increases biodiversity by increasing nutrients at the surface.
It decreases biodiversity by decreasing nutrients at the surface.
3
How does warm ocean currents, like the Gulf Stream, affect the climate of nearby coastal regions?
make them colder and drier
make them warmer and drier
make them warmer and wetter
make them colder and wetter
4
How does upwelling provide nutrients for Earth’s oceans?
Nutrients are deposited by rivers and salty tides
Nutrients are moved off the ocean surface and deposited on the ocean floor
Nutrients are released out of super-heated vents on the seafloor
Nutrients are taken off the ocean floor and moved to the ocean surface
5
True or false: Water absorbs and releases solar energy more slowly than land.
true
false
6
Which dissolved gas would producers remove from ocean water during photosynthesis?
oxygen
sodium chloride
nitrogen
carbon dioxide
7
Which of the following has the biggest effect on deep ocean currents?
tides and salinity
temperature and salinity
tides and wind
temperature and wind
8
How does upwelling provide the needed materials to support life forms?
Upwelling transfers heat from hydrothermal vents to surface organisms
Upwelling brings nutrients from the ocean floor to the ocean surface
Upwelling moves oxygen from the deep ocean to the surface of the ocean
Upwelling distributes salinity levels between the deep ocean & the surface
9
Which are the main sources of oxygen in ocean water?
estuaries and kelp forests
the atmosphere and marine algae
the atmosphere and underwater volcanoes
estuaries and kelp forests
10
Which is most likely to be the energy source for organisms living in hydrothermal vents?
oxygen
sunlight
methane
carbon dioxide
11
Which are the most abundant dissolved gases in ocean water?
oxygen and methane
nitrogen and sulfide
oxygen and carbon dioxide
nitrogen and carbon dioxide
12
In the event upwelling occurs along a shore, which will most likely happen?
The water temperature will remain the same.
There will be an increase in aquatic life.
There will be a decrease in aquatic life.
The water temperature will increase.
13
Why is nearly 97% of Earth's water unsuitable for consumption by humans?
because it is trapped in ice
becauses it is underground
because it is too salty
because itis too cold
14
Which describes the conditions life forms must adapt to in deep ocean environments?
They must adapt to high temperatures, low salinity, and no sunlight.
They must adapt to high temperatures, high salinity, and no sunlight.
They must adapt to low temperatures, high salinity, and no sunlight.
They must adapt to low temperatures, low salinity, and no sunlight.
15
What causes upwelling in the oceans?
animal migration patterns
winds and ocean currents
coral reef construction
photosynthesis reactions
16
Ocean currents heat through the process of
convection
radiation
conduction
17
Which contributes most in supporting life on the deep ocean floor?
hydrothermal vents
cold water temperatures
extreme water pressure
lack of predators
18
What is the movement of cold, nutrient-rich waters from the bottom of the ocean, promoting algae growth?
eutrophication
preciptiation
upwelling
deposition
19
Which best describes the source of oxygen in ocean water?
oxygen is produced through the exhalations of marine animals
oxygen is produced by marine plants in the process of making food
oxygen is produced by nodules on the ocean floor
oxygen is produced through precipitation falling on the ocean
20
Which organisms will be most directly affected by the amount of dissolved carbon dioxide in ocean water?
phytoplankton
plants
fish
decomposers
21
Why is the surface temperature of the ocean usually greater than the temperature on the ocean floor?
The density of the water is higher than the surface
The surface of the water receives more sunlight
The salinity is higher along the surface of the water
More photosynthetic organisms live near the surface
22
In which ocean zone is ocean temperature most affected by the weather?
sunlight zone
midnight zone
hadal/trench
twilight zone
23
Which best explains why the surface zones of the ocean have the highest amount of dissolved oxygen?
The area comes in contact with large quantities of salt water.
The area has deep water currents moving the oxygen up from the ocean floor
The area is host to large marine mammals.
The area has more sun which allows organisms to undergo photosynthesis
24
Choose the correct statement that explains the relationship between the temperature, salinity, and density of water.
Higher temps & lower salinity making water more dense, causing it to sink.
Lower temp and higher salinity making water more dense, causing it to sink
Higher temps & higher salinity making water more dense, causing it to sink.
Lower temp and lower salinity making water more dense, causing it to sink.

Duplicate of Ocean (ESS.8.2.2) Review Flashcards | StudBud