Question 1

One toxic substance found in pesticides, industrial solvents, and cleaning fluids that has exceeded dangerous concentrations in some coastal areas is:

Accepted Answer

A)  petroleum. 
B)  chlorinated hydrocarbons. 
C)  emulsion. 
D)  oil. 
A)  petroleum. 
B)  chlorinated hydrocarbons. 
C)  emulsion. 
D)  oil. B

Question 2

The gas that comprises 72% of the greenhouse gases in our atmosphere is:

Accepted Answer

A)  methane. 
B)  oxygen. 
C)  nitrous oxide. 
D)  carbon dioxide. 
A)  methane. 
B)  oxygen. 
C)  nitrous oxide. 
D)  carbon dioxide. D

Question 3

Which of the following statements applies to resources from the sea?

Accepted Answer

A)  They are easier to recover than from the land. 
B)  They are more difficult to locate and extract. 
C)  They are in greater variety than minerals on land. 
D)  They are less expensive to recover than from land. 
A)  They are easier to recover than from the land. 
B)  They are more difficult to locate and extract. 
C)  They are in greater variety than minerals on land. 
D)  They are less expensive to recover than from land. B

Question 4

Overall, the ocean's most valuable biological resources consist of:

Accepted Answer

A)  compounds harvested for medical use. 
B)  cultured kelp and algae. 
C)  fish, crustaceans, and mollusks. 
D)  whales. 
A)  compounds harvested for medical use. 
B)  cultured kelp and algae. 
C)  fish, crustaceans, and mollusks. 
D)  whales.

Question 5

All of the following changes in ocean conditions are expected to occur if current trends in climate change continue EXCEPT:

Accepted Answer

A)  increase in anoxic zones (i.e. dead zones). 
B)  decrease in the pH of seawater. 
C)  increase in sea surface temperatures. 
D)  decrease in the intensity of El Nino events. 
A)  increase in anoxic zones (i.e. dead zones). 
B)  decrease in the pH of seawater. 
C)  increase in sea surface temperatures. 
D)  decrease in the intensity of El Nino events.

Question 6

Generally speaking, a spill of crude oil is more dangerous to marine life than a spill of refined oil.

Accepted Answer

A) True 
 B)False

Question 7

Drift nets were developed in response to demands that fishing nets take only target species, and that fishing ought to be more environmentally sensitive.

Accepted Answer

A) True 
 B)False

Question 8

About ____ of the crude oil used by humans is derived from the seabed.

Accepted Answer

A)  3/4 
B)  1/2 
C)  1/3 
D)  all 
A)  3/4 
B)  1/2 
C)  1/3 
D)  all

Question 9

Though desalination is a theoretically attractive method for obtaining fresh water from seawater, no large commercial facilities for desalination exist.

Accepted Answer

A) True 
 B)False

Question 10

The world's largest industry is:

Accepted Answer

A)  tourism. 
B)  renewable resources. 
C)  commercial fishing. 
D)  whaling. 
A)  tourism. 
B)  renewable resources. 
C)  commercial fishing. 
D)  whaling.

Question 11

The fastest growing alternative energy source is:

Accepted Answer

A)  nuclear power. 
B)  coal energy. 
C)  wind power. 
D)  oil energy. 
A)  nuclear power. 
B)  coal energy. 
C)  wind power. 
D)  oil energy.

Question 12

With current climate change trends, is there any evidence that the ocean environment is changing as a result of increased greenhouse gases? Explain why or why not.

Accepted Answer

There is scientific evidence that the oc

Question 13

The most dangerous threat to the marine environment, overall, is probably:

Accepted Answer

A)  human overpopulation. 
B)  refined oil spills. 
C)  solid waste and synthetic pesticides. 
D)  excessive greenhouse heating. 
A)  human overpopulation. 
B)  refined oil spills. 
C)  solid waste and synthetic pesticides. 
D)  excessive greenhouse heating.

Question 14

The best fishing grounds are located:

Accepted Answer

A)  in the middle of the open ocean. 
B)  in temperate waters over continental shelves. 
C)  in tropical waters of the deep sea. 
D)  in equatorial deep waters. 
A)  in the middle of the open ocean. 
B)  in temperate waters over continental shelves. 
C)  in tropical waters of the deep sea. 
D)  in equatorial deep waters.

Question 15

Sometimes, the best thing to do in the event of a crude oil spill is to do nothing.

Accepted Answer

A) True 
 B)False

Question 16

Second to petroleum and natural gas, the most profitable resource recovered from the marine environment is:

Accepted Answer

A)  gold. 
B)  diamonds. 
C)  sand and gravel. 
D)  coal. 
A)  gold. 
B)  diamonds. 
C)  sand and gravel. 
D)  coal.

Question 17

Which of the following statements is FALSE concerning bycatch?

Accepted Answer

A)  Bycatch are targeted species. 
B)  Bycatch sometimes greatly exceeds the target catch. 
C)  Bottom trawling is one of the methods that results in a lot of bycatch. 
D)  Sea turtles are an example of bycatch. 
A)  Bycatch are targeted species. 
B)  Bycatch sometimes greatly exceeds the target catch. 
C)  Bottom trawling is one of the methods that results in a lot of bycatch. 
D)  Sea turtles are an example of bycatch.

Question 18

The per capita world fish catch has changed in what way?

Accepted Answer

A)  It has been climbing steadily since the 1950s. 
B)  It has declined drastically since the 1950s. 
C)  It has stayed at the level of the 1960s. 
D)  It has declined significantly since the 1970s. 
A)  It has been climbing steadily since the 1950s. 
B)  It has declined drastically since the 1950s. 
C)  It has stayed at the level of the 1960s. 
D)  It has declined significantly since the 1970s.

Question 19

In terms of the volume of oil spilled and subsequent environmental damage, the wreck of the tanker Exxon Valdez was the worst tanker accident in history.

Accepted Answer

A) True 
 B)False

Question 20

Pollutants can have negative influences on organisms by interfering with biochemical processes.

Accepted Answer

A) True 
 B)False

One toxic substance found in pesticides, industrial solvents, and cleaning fluids that has exceeded dangerous concentrations in some coastal areas is:

The gas that comprises 72% of the greenhouse gases in our atmosphere is:

Which of the following statements applies to resources from the sea?

Overall, the ocean's most valuable biological resources consist of:

All of the following changes in ocean conditions are expected to occur if current trends in climate change continue EXCEPT:

Generally speaking, a spill of crude oil is more dangerous to marine life than a spill of refined oil.

Drift nets were developed in response to demands that fishing nets take only target species, and that fishing ought to be more environmentally sensitive.

About ____ of the crude oil used by humans is derived from the seabed.

Though desalination is a theoretically attractive method for obtaining fresh water from seawater, no large commercial facilities for desalination exist.

The world's largest industry is:

The fastest growing alternative energy source is:

With current climate change trends, is there any evidence that the ocean environment is changing as a result of increased greenhouse gases? Explain why or why not.

The most dangerous threat to the marine environment, overall, is probably:

The best fishing grounds are located:

Sometimes, the best thing to do in the event of a crude oil spill is to do nothing.

Second to petroleum and natural gas, the most profitable resource recovered from the marine environment is:

Which of the following statements is FALSE concerning bycatch?

The per capita world fish catch has changed in what way?

In terms of the volume of oil spilled and subsequent environmental damage, the wreck of the tanker Exxon Valdez was the worst tanker accident in history.

Pollutants can have negative influences on organisms by interfering with biochemical processes.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Pelagic Communities

Benthic Communities

Filters

Exam 15: Uses and Abuses of the Ocean

One toxic substance found in pesticides, industrial solvents, and cleaning fluids that has exceeded dangerous concentrations in some coastal areas is:

The gas that comprises 72% of the greenhouse gases in our atmosphere is:

Which of the following statements applies to resources from the sea?

Overall, the ocean's most valuable biological resources consist of:

All of the following changes in ocean conditions are expected to occur if current trends in climate change continue EXCEPT:

Generally speaking, a spill of crude oil is more dangerous to marine life than a spill of refined oil.

Drift nets were developed in response to demands that fishing nets take only target species, and that fishing ought to be more environmentally sensitive.

About ____ of the crude oil used by humans is derived from the seabed.

Though desalination is a theoretically attractive method for obtaining fresh water from seawater, no large commercial facilities for desalination exist.

The world's largest industry is:

The fastest growing alternative energy source is:

With current climate change trends, is there any evidence that the ocean environment is changing as a result of increased greenhouse gases? Explain why or why not.

The most dangerous threat to the marine environment, overall, is probably:

The best fishing grounds are located:

Sometimes, the best thing to do in the event of a crude oil spill is to do nothing.

Second to petroleum and natural gas, the most profitable resource recovered from the marine environment is:

Which of the following statements is FALSE concerning bycatch?

The per capita world fish catch has changed in what way?

In terms of the volume of oil spilled and subsequent environmental damage, the wreck of the tanker Exxon Valdez was the worst tanker accident in history.

Pollutants can have negative influences on organisms by interfering with biochemical processes.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Pelagic Communities

Benthic Communities

Filters