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Marine Bio U2 Review: Ocean Chemical and Physical Properties

Total questions: 74

Worksheet time: 54mins

Name
Class
Date
1.
What might happen if the global conveyor stopped?
a)
Marine life would get too much oxygen
b)
Marine life would get too little oxygen
c)
There would be no effect
d)
There would be a new ice age
2.
Ocean currents can travel clockwise or counter-clockwise.  Which direction would they travel in the northern hemisphere?
a)
Counter-clockwise
b)
Clockwise
c)
Huh?
d)
I like toast
3.
________ is a climate event that occurs when surface waters in the eastern Pacific are colder than normal.
a)
La Nina
b)
El Nino
c)
Coriolis Effect
d)
trade winds
4.
____________ is an abnormal climate event that occurs every 2 to 7 years in the Pacific Ocean.
a)
El Nino
b)
La Nina
c)
Curse of the goat
d)
Curse of the Bambino
5.
____________ are large streams of moving water that flow through the oceans.
a)
La Niña
b)
El Niño
c)
Currents
d)
Climate
6.
The effect of Earth’s rotation on the direction of winds and currents is called the _______________ .
a)
La Niña
b)
 El Niño
c)
Coriolis effect
d)
Currents
7.
Which of the following is caused by differences in ocean water density?
a)
surface currents
b)
 deep currents
c)
waves
d)
Coriolis effect
8.
What is the Gulf Stream?
a)
a surface current
b)
deep current
c)
a river
d)
a climate event
9.

What are two factors that affect the density differences in the ocean.

a)

salinity and temperature

b)

Density and Pressure

c)

Pressure and Temperature

d)

Salinity and El Nino

10.
Ocean water is more dense than fresh water at the same temperature due to differences in:  
a)
Wind patterns
b)
 Lifeforms
c)
Currents
d)
Salinity
11.
What causes surface currents to move in circular paths?
a)
strong winds
b)
the Coriolis effect
c)
salinity
d)
the Global Ocean Conveyor
12.
Deep currents are caused by differences in the  _______________ ocean water.
a)
 eutrophication of
b)
sun's effect on
c)
density of
d)
 salinity  of 
13.
The thermohaline circulation is a pattern of ocean currents driven by _______________ differences.
a)
density
b)
temperature
c)
climate
d)
wave height
14.
A surface current effects the  ________________ of nearby land.
a)
climate
b)
daily temperature
c)
winds
d)
toast
15.
What causes warm air to rise? 
a)
The fact that it's less dense than cold air
b)
The fact that it weighs more than cold air
c)
The fact that it has higher pressure than cold air
d)
The fact that it's more dense than cold air
16.
What causes wind to blow?
a)
Differences in longitude
b)
Shock waves from clouds
c)
Differences in air temperature and pressure
d)
The rotation of earth
17.
Which term best describes how the earth's atmosphere is heated?
a)
spirally
b)
unevenly
c)
circularly
d)
kinetically
18.
What creates the air pressure difference between the equator and the poles? 
a)
The length of the seasons
b)
The shape of the earth
c)
The duration of the solar year
d)
The amount of direct sunlight each area receives
19.
Where might you find a gyre?
a)
Moving in a circle in the South Atlantic Ocean, between South America and Africa
b)
Moving in a straight line in the North Atlantic from North America to Europe
c)
Moving in a triangular pattern 500 meters beneath the surface of the South Pacific Ocean
d)
Moving in one long loop through all of the world's oceans
20.
What can you infer about the water at the surface of the ocean, compared to the water hundreds of meters below?
a)
Surface water tends to be saltier
b)
Surface water tends to be denser
c)
Surface water tends to be warmer
d)
Surface water tends to be calmer
21.
What powers surface currents?
a)
The sun
b)
The moon
c)
Winds
d)
Coriolis Effect
22.
Besides water, currents transport matter and ____ around the world.
a)
energy
b)
density
c)
winds
23.
Cold water from deep in the ocean contains
a)
sea turtles
b)
surface currents
c)
solar energy 
d)
nutrients
24.
What two elements make up water?
a)
Helium and oxygen
b)
Hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
25.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
26.
In addition to salinity, what factor affects the density of seawater?
a)
depth
b)
latitude
c)
temperature
d)
salt content
27.
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
28.
What happens to pressure as you go deeper into the ocean? 
a)
increases
b)
decreases
c)
stays the same
d)
doubles
29.
What is the most abundant salt in the sea?
a)
calcium chloride
b)
potassium chloride
c)
magnesium chloride
d)
sodium chloride
30.
The highest salinity would be found in which of the following areas?
a)
an area with high rates of precipitation
b)
an area with high rates of evaporation
c)
an area with plenty of runoff
d)
all of the above
31.
Which of the following can cause an increase in the density of ocean water?
a)
a decrease in temperature
b)
an increase in salinity
c)
a decrease in ocean circulation
d)
two of these
32.
What term is the measure of dissolved salts in water?
a)
Thermocline
b)
Salinity
c)
Saltiness
d)
Tides
33.
If I have freshwater that is less dense, what will it do in comparison to salt water that is more dense?
a)
The more dense water will float and the less dense water will sink.
b)
The more dense water will sink and the less dense water will float
c)
Nothing they will mix evenly.
34.
Where would you find the lowest density seawater?
a)
surface zone
b)
deep zone
c)
transition zone
d)
abyssal zone
35.
As you travel deeper in the ocean...
a)
Temperature increases
b)
Light increases
c)
Pressure decreases
d)
Temperature decreases
36.
Cold and warm ocean water is carried around the world by
a)
spring tides
b)
currents
c)
neap tides
d)
tsunamis
37.
As you go deeper in the ocean, which of the following does not decrease?
a)
temperature
b)
light
c)
the number of algae
d)
pressure
38.
Which term refers to a rapid change of temperature with increasing depth of the ocean?
a)
pycnocline
b)
thermocline
c)
abyssalocline
d)
isothermal cline
39.
The highest salinity would be found in which of the following areas?
a)
an area with high rates of precipitation
b)
an area with high rates of evaporation
c)
an area with plenty of runoff
d)
all of the above
40.
True or False Salinity increases as ocean depth increases.
a)
True
b)
False
41.

Which term means how clear water is

a)

Acidity

b)

pH

c)

Turbidity

d)

Hardness

42.

What portion of the ocean has the highest levels of oxygen?

a)

the bottom - because the oxygen sinks

b)

the bottom - because of high levels of photosynthesis

c)

the surface - because of high levels of photosynthesis

d)

the surface - because of high rates of decomposition

43.

Why is there more carbon dioxide in deeper water?

a)

because less photosynthesis occurs there

b)

because more photosynthesis occurs there

44.

The ocean layer where temperature changes most rapidly is the thermocline

a)

true

b)

false

45.

Surface ocean water is less dense than deep ocean water

a)

T

b)

F

46.

Water has a low heat capacity

a)

T

b)

F

47.

heat capacity of water is _______ compared to other substances

a)

high

b)

low

c)

equal

48.

The pH of water is slightly:

a)

acidic

b)

basic

c)

neutral

49.

The two most abundant elements dissolved in seawater. (Choose two)

a)

Potassium

b)

Sulfates

c)

Sodium

d)

Chloride

50.
A vertical section ranging from the ocean surface to the floor
a)
Ocean
b)
Water Column
c)
River Basin
d)
Pressure 
51.
The weight of water pushing down is
a)
Salinity
b)
Density
c)
Temperature
d)
Water Pressure 
52.
Organisms at the surface produce which gas through photosynthesis?
a)
Oxygen
b)
Carbon Dioxide
c)
Carbon Monoxide
d)
Helium
53.
The surface zone extends about how far down?
a)
200m
b)
500m
c)
1km
d)
200km
54.
The movement of cool water from the deep zone to the surface 
a)
Tidal Waves
b)
Water Pressure 
c)
Upwelling 
d)
Surface Currents 
55.
Upwelling attracts what to the area?
a)
Warm air 
b)
Hurricanes
c)
Fish
d)
Winds 
56.

Increased CO2 in the atmosphere dissolves into ocean water, this causes:

a)

Ocean Acidification

b)

Deterioration of Shelled Organisms

c)

Decreased pH

d)

All of these are results of increase CO2 levels

57.

Where do ocean gases come from?

a)

Diffusion with Atmosphere

b)

Fish Respiration

c)

Diffusion with hydrothermal vents

d)

Washed into ocean from rivers and streams

58.

Which of the following is the GREATEST contributor to increasing ocean salinity?

a)

Increasing precipitation

b)

Weathering of rocks and minerals washed into the ocean

c)

Eruptions from oceanic seamounts

d)

Evaporation and drought decreases ocean water volume

59.

The region of a water column in which there is little to no temperature change on the ocean surface

a)

Thermocline

b)

Halocline

c)

Isothermal

d)

Aphotic Region

60.

At what depth is the major thermocline for tropical water?

a)

no thermocline exists

b)

100-200m

c)

300-500m

d)

500m+

61.

Which latitude has the steepest thermocline?

a)

Polar

b)

Mid-Latitude

c)

Tropical

d)

None of the above

62.

The winds found from 60-90 degrees latitude

a)

Westerlies

b)

Trade Winds

c)

Polar Easterlies

d)

Hadley Cell

63.

Plastic consumption amongst fish impact humans through:

a)

Bioaccumulation

b)

Biomagnification

c)

Bioplastification

d)

All of the above

64.

Which of the following is the accumulation of pollutants over the lifespan of an organism?

a)

Bioaccumulation

b)

Biomagnification

c)

Bioplastification

d)

None of the above

65.

Together a high and low pressure zone form:

a)

The tides

b)

A weather cell

c)

Mid-Pressure Zone

d)

The current

66.

Which of the following organisms would be the most potentially dangerous to consume?

a)

Copepod cavier

b)

Sunfish Sushi

c)

Sharkfin Soup

d)

All of the above

67.

According to the documentary, which of the following is the worst single use plastic offender?

a)

water bottles

b)

plastic baggies

c)

plastic to go containers

d)

red solo cups

68.

Which of the following current contributors is responsible for creating swirling ocean garbage patches out of plastic pollutants?

a)

Thermohaline circulation

b)

Coriolis effect

c)

Upwelling

d)

Gyres

69.

The relationship between salinity and density:

a)

Direct

b)

Inverse

c)

Neither

d)

Both

70.

The relationship between carbon dioxide and pH

a)

Direct

b)

Inverse

c)

Both

d)

Neither

71.

The relationship between depth and pressure

a)

Direct

b)

Inverse

c)

Both

d)

Neither

72.

The relationship between temperature and density

a)

Direct

b)

Inverse

c)

Both

d)

Neither

73.

Which ocean characteristic was linked to change in shark migration and therefore feeding behavior

a)

Change in pressure due to underwater submarines

b)

change in salinity due to a drought

c)

change in temperature which directs migration times

d)

change in dissolved gas availability from methane seeps

74.

How is ocean pH measured?

a)

PSI

b)

PSU

c)

PSC

d)

SUP

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