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Oceans

Total questions: 60

Worksheet time: 46mins

Name
Class
Date
1.
Surface currents are a result of
a)
Global Wind Patterns
b)
Earth's Rotation
c)
Density
d)
All of the above
2.
Deep Ocean currents are a result of
a)
Global Wind Patterns
b)
Earth's Rotation
c)
Density
d)
All of the above
3.
Two types of water currents are
a)
local and global
b)
sea and land
c)
surface and deep
d)
warm and cold
4.
What term is the measure of dissolved salts in water?
a)
Thermocline
b)
Salinity
c)
Saltiness
d)
Tides
5.
97% of the water on earth is _________, making it undrinkable for humans.
a)
fresh water
b)
ground water
c)
salt water
d)
surface water
6.
A connection between terrestrial and aquatic food webs is best exemplified by which pair of animals?
a)
dolphins and fish
b)
lions and gazelles
c)
pelicans and fish
d)
spiders and flies
7.
Which statement best describes an estuary?
a)
An estuary is the extension of a continent located underwater.
b)
An estuary is land that is exposed at low tide and is underwater at high tide.
c)
An estuary is a partly enclosed body of water where a river meets the ocean.
d)
An estuary is a deep body of water that contains large animals.
8.
The diagram shows a boat using sonar to gather information in the ocean. What is most likely being measured with this technology?
a)
ocean depth
b)
ocean temperature
c)
pH level
d)
turbidity level
9.
The population of photosynthetic organisms is higher in the neritic zone and surface waters than in the deep ocean. Which statement best explains the reason for this?
a)
There is more space for plants to grow in these areas of the ocean.
b)
There is more dissolved oxygen for plants in these areas of the ocean.
c)
The availability of sunlight and nutrients supports photosynthetic organisms.
d)
The high salinity and cool temperature supports photosynthetic organisms.
10.
Which statement about oceans is true?
a)
Pressure is lower on the ocean floor.
b)
Water temperature increases with depth.
c)
More photosynthesis occurs in the warmer surface waters.
d)
The colder, deeper waters are less dense than the surface waters.
11.
Which statement best describes how nutrients move in the ocean as a result of upwelling?
a)
Nutrients move from estuaries into the intertidal zone.
b)
Nutrients move from warm, shallow areas to deep, colder areas.
c)
Nutrients move from the neritic zone to the intertidal zone.
d)
Nutrients move from deep, colder areas to warm, shallow areas.
12.

A snaggletooth fish has a glowing lure that extends from its chin to attract prey. In which ocean zone does this fish most likelylive?

a)

deep zone

b)

intertidal zone

c)

neritic zone

d)

oceanic zone

13.
In what ocean zone do coral reefs grow?
a)
estuarial zone
b)
intertidal zone
c)
neritic zone
d)
oceanic zone
14.
In what ocean zone are tide pools located?
a)
estuarial zone
b)
intertidal zone
c)
neritic zone
d)
oceanic zone
15.
The diagram shows an organism that lives in the ocean.What is true about the organism shown?
a)
It is algae.
b)
It is benthos.
c)
It is nekton.
d)
It is plankton.
16.
Which organism is an example of a benthos?
a)
jellyfish
b)
seal
c)
shark
d)
starfish
17.
Which organism would be found in an intertidal zone?
a)
coral
b)
crab
c)
dolphin
d)
squid
18.
Which tool would most likely  be used by scientists to explore a hydrothermal vent at the Mid-Atlantic Ridge?
a)
buoy
b)
remote operated vehicle
c)
satellite imagery
d)
sonar
19.
A group of students developed a model to represent the different zones of an ocean. Which factor prevents the growth of aquatic plants in the aphotic zone?
a)
absence of tides
b)
absence of sunlight
c)
underwater volcanoes
d)
salinity of water
20.
Which process occurs in the ocean and contributes large amounts of oxygen to the atmosphere?
a)
digestion by fish
b)
decomposition by bacteria
c)
respiration by zooplankton
d)
photosynthesis by phytoplankton
21.

Water temperature & depth are factors that determine if organisms can live in different zones of the ocean. What is a third factor?

a)

Surface currents

b)

Plankton

c)

Sunlight

d)

Gravitational pull

22.

Three of the gases below are found DISSOLVED in the ocean. Which of the following is NOT found in the ocean?

a)

hydrogen

b)

oxygen

c)

nitrogen

d)

carbon dioxide

23.

A source for dissolved salts in the ocean can be contributed to

a)

Precipitation

b)

Captain Jack's fight with the Kraken

c)

Human activity

d)

Minerals dissolved from sediment

24.
At the mouth of a river salinity is 
a)
very low due to salt in the river
b)
very high due to freshwater in the river
c)
does not change
d)
very low due to freshwater in the river
25.

As salinity increases,

a)

density increases

b)

density decreases

c)

density stays the same

26.
During warmer temperatures evaporation occurs more. Therefore, salinity
a)
increases
b)
decreases
c)
stays the same
27.

Which zone does the temperature and density drop rapidly?

a)

surface zone

b)

transition zone

c)

deep zone

28.
Plants and animals that live on the ocean floor are...
a)
benthos
b)
nekton
c)
plankton
d)
diatoms
29.
The part of the ocean that extends from the low-tide line to the edge of the continental shelf is the 
a)
Nertic Zone
b)
Open Ocean Zone
c)
Intertidal Zone
d)
Deep Zone
30.

______ are all organisms that swim freely, independent of currents.

a)

Benthic

b)

Plankton

c)

Nekton

d)

Algae

31.
The plankton that is animal-like is called
a)
bacteria 
b)
phytoplankton 
c)
zooplankton 
32.

This is the zone between high-tide and low-tide (literally means between tides)

a)

Aphotic Zone

b)

Neretic Zone

c)

Pelagic Zone

d)

Intertidal Zone

33.

The two primary sources for salt being added to the ocean.

a)

Chemical weathering and volcanic eruptions

b)

Earthquakes and landslides

c)

Fish overpopulation and precipitation

d)

Melting sea ice and condensation

34.

These organisms drift with ocean currents

a)

Plankton

b)

Nekton

c)

Benthos

35.

These organisms can move independently of ocean currents

a)

Plankton

b)

Nekton

c)

Benthos

36.

These organisms live on or in the ocean bottom

a)

Plankton

b)

Nekton

c)

Benthos

37.

The deepest zone in the ocean has high water pressure, low temperatures, and no sunlight.

a)

Neritic Zone

b)

Pelagic Zone

c)

Abyssal Zone

d)

Intertidal Zone

38.
Large bodies of water do not quickly fluctuate in temperature. Why?
a)
Water is a solvent.
b)
Water has a high heat capacity.
c)
Water acts as a buffer.
d)
Water is non-polar.
39.
A result of upwelling is a/an _________ in nutrients in the water.
a)
Decrease
b)
Increase
c)
No Change
40.
Upwelling causes the water off the western coasts of continents in the tropics to  
a)
Have warmer temperatures than other tropical waters
b)
be productive fishing grounds
c)
produce El Nino 
d)
ride over cold denser waters below
41.
mixture of fresh and salt water
a)
Upwelling
b)
Brackish Water
c)
Downwelling
d)
Current
42.
Flow of warm, oxygen rich water downward to deeper water
a)
Upwelling
b)
Current
c)
Downwelling
d)
Tide
43.
an area where ocean water sinks through cracks in the ocean floor, is heated by the underlying magma, and rises again through the cracks
a)
Circulation
b)
Wave
c)
Hydrothermal Vents
d)
Tide
44.
Daily changes in the level of ocean water
a)
Algae
b)
Wave
c)
Brackish Water
d)
Tide
45.
Which process does NOT lead to a decrease in the salinity of water?
a)
runoff from land
b)
precipitation
c)
sea ice melting
d)
evaporation
46.
In addition to salinity, what factor affects the density of seawater?
a)
depth
b)
latitude
c)
temperature
d)
salt content
47.
What term is the measure of dissolved salts in water?
a)
Thermocline
b)
Salinity
c)
Saltiness
d)
Tides
48.
Where would you find the lowest density seawater?
a)
surface zone
b)
deep zone
c)
transition zone
d)
abyssal zone
49.
Light does not reach the bottom of the ocean, yet certain species live there. Which best explains how species on the bottom of the ocean get energy to live?
a)
Algae and bacteria produce energy through photosynthesis.
b)
Hydrothermal vents produce energy through chemical reactions.
c)
Dead plants and animals produce energy through decomposition.
d)
Light comes from the core of the earth.
50.
Scientists have found strange new life-forms called “tubeworms” on the deep ocean bottom. Which most likely provides energy for the tubeworms?
a)
algae
b)
small fish
c)
photosynthesis
d)
hydrothermal vents
51.
Which ocean zone contains hydrothermal vents?
a)
Deep zone (abyss)
b)
Surface zone (sunlight)
c)
Shallow zone (twilight)
d)
Midnight zone
52.
Deep ocean technology has discovered organisms in hydrothermal vents that do not rely on sunlight to survive. What do these organisms use as their energy source?
a)
chemosynthesis
b)
electrical charge
c)
hydropower
d)
thermal heat
53.
Which is most likely to be the energy source for organisms living in hydrothermal vents?
a)
oxygen
b)
sunlight
c)
methane or sulfur
d)
carbon dioxide
54.
What is a similarity between photosynthesis and chemosynthesis?
a)
Both are metabolic processes which produce energy for living things
b)
Both use sunlight
c)
Both are performed by bumblebees
d)
Both produce Carbon Dioxide
55.
What is chemosynthesis?
a)
Where bacteria use light energy to make glucose.
b)
Where plants use light energy to make glucose
c)
Where bacteria use chemical reactions to make glucose
56.
What is the source of energy for chemosynthesis
a)
Light energy
b)
Chemical energy
c)
Kinetic energy
57.
What is often used as a reactant in chemosynthesis?
a)
Oxygen
b)
Glucose
c)
Carbon dioxide
58.
Where are the places that sulfur bacteria live.
a)
Near deep sea volcanic vents and inside tube worms.  
b)
In soil and roots of some plants
c)
Near volcanic vents and in soil
59.
One thing chemosynthesis and photosynthesis have in common is that they both require...
a)
energy
b)
glucose
c)
water
60.

Wet weather on U.S. Gulf Coast during winter, which is usually the dry season

- Fewer hurricanes in the North Atlantic

-Strong winds storms on west coast

-Heavy Rains in South America

-Droughts in Australia, Africa, and Southern India, Indonesia

-Reduced tropical upwelling, causing lower fish catches and coral death

a)

El nino

b)

La nina

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