Question 1

Marine biological invaders arrive ________.

Accepted Answer

A)  in ballast water 
B)  with commercially harvested shellfish 
C)  from home aquariums 
D)  attached to seaplanes and small boats 
E)  All of these are correct. 
A)  in ballast water 
B)  with commercially harvested shellfish 
C)  from home aquariums 
D)  attached to seaplanes and small boats 
E)  All of these are correct.

Question 2

Human impacts on the planet have become prominent since approximately ________.

Accepted Answer

A)  the past four to five decades 
B)  the past century 
C)  the past 150 to 300 years 
D)  the past millennium 
E)  the beginning of time 
A)  the past four to five decades 
B)  the past century 
C)  the past 150 to 300 years 
D)  the past millennium 
E)  the beginning of time

Question 3

Material accidentally lost at sea is called flotsam, while material deliberately discarded is called jetsam.

Accepted Answer

A) True 
 B)False

Question 4

Hypoxia ________.

Accepted Answer

A)  occurs when oxygen concentrations fall below 2 mg per mL 
B)  can result in the death of sessile organisms 
C)  occurs when respiration rates exceed oxygen replenishment via circulation 
D)  occurs when oxygen concentrations fall below 2 mg per mL, can result in the death of sessile organisms, and occurs when respiration rates exceed oxygen replenishment via circulation 
E)  None of these is correct. 
A)  occurs when oxygen concentrations fall below 2 mg per mL 
B)  can result in the death of sessile organisms 
C)  occurs when respiration rates exceed oxygen replenishment via circulation 
D)  occurs when oxygen concentrations fall below 2 mg per mL, can result in the death of sessile organisms, and occurs when respiration rates exceed oxygen replenishment via circulation 
E)  None of these is correct.

Question 5

Over the past two decades, coastal wetland loss in the regions of the Great Lakes, Atlantic Ocean, and the Gulf of Mexico has resulted in approximately what percentage being lost?

Accepted Answer

A)  5 percent 
B)  10 percent 
C)  15 percent 
D)  20 percent 
E)  30 percent 
A)  5 percent 
B)  10 percent 
C)  15 percent 
D)  20 percent 
E)  30 percent

Question 6

The sea is so vast that it can easily absorb any pollutants we dump into it with little harm to the environment.

Accepted Answer

A) True 
 B)False

Question 7

Clean-up efforts for oil spills are often as destructive as the oil spill.

Accepted Answer

A) True 
 B)False

Question 8

The Federal Clean Water Act was passed in ________.

Accepted Answer

A)  1972 
B)  1982 
C)  1990 
D)  1995 
E)  2000 
A)  1972 
B)  1982 
C)  1990 
D)  1995 
E)  2000

Question 9

The enforcement of the international convention for the prevention of pollution from ships (the origin of the U.S. Marine Plastic Pollution and Control Act of 1987) in international waters is implemented by ________.

Accepted Answer

A)  the United States 
B)  the United Nations 
C)  the G-8 
D)  the European Union 
E)  nobody 
A)  the United States 
B)  the United Nations 
C)  the G-8 
D)  the European Union 
E)  nobody

Question 10

Despite the growth in commercial fishing and the exploitation of new fishing stocks, world fish harvests have remained nearly constant over the last decade.

Accepted Answer

A) True 
 B)False

Question 11

Only animals are considered invasive species.

Accepted Answer

A) True 
 B)False

Question 12

Dumping the muds from dredged harbors offshore does not affect the coastal sediments.

Accepted Answer

A) True 
 B)False

Question 13

As plastics discarded in the marine environment degrade, they can produce and concentrate

Accepted Answer

A)  bisphenol A (BP
A)  
B)  PCBs 
C)  DDT 
D)  All of these choices are correct. 
A)  bisphenol A (BP
A)  
B)  PCBs 
C)  DDT 
D)  All of these choices are correct.

Question 14

The effects of overfishing cease immediately when fishing is stopped.

Accepted Answer

A) True 
 B)False

Question 15

The size of the hypoxic dead zone in the Gulf of Mexico appears to vary annually in response to all of the following except ________.

Accepted Answer

A)  annual fish catch 
B)  annual rainfall 
C)  the amount of fertilizer used 
D)  periods of drought 
A)  annual fish catch 
B)  annual rainfall 
C)  the amount of fertilizer used 
D)  periods of drought

Question 16

Pollution is best described as ________.

Accepted Answer

A)  adding substances or energy that harm the environment 
B)  changing the population growth of species 
C)  the decrease in the quality of the environment as a result of natural events 
D)  substances or materials that are toxic to humans, thus decreasing the quality of the human environment 
E)  can be broken down by bacteria 
A)  adding substances or energy that harm the environment 
B)  changing the population growth of species 
C)  the decrease in the quality of the environment as a result of natural events 
D)  substances or materials that are toxic to humans, thus decreasing the quality of the human environment 
E)  can be broken down by bacteria

Question 17

Mariculture, or aquaculture, has about the same relationship to commercial fishing as farming does to hunting.

Accepted Answer

A) True 
 B)False

Question 18

There is evidence for overfishing since approximately ________.

Accepted Answer

A)  the 1970s 
B)  the early 1900s 
C)  the mid-1800s 
D)  the late 1700s 
E)  1000 years ago 
A)  the 1970s 
B)  the early 1900s 
C)  the mid-1800s 
D)  the late 1700s 
E)  1000 years ago

Question 19

How much oil is usually recovered after a spill?

Accepted Answer

A)  5 to 10 percent 
B)  8 to 15 percent 
C)  22 to 25 percent 
D)  Up to 50 percent 
E)  None is recovered. 
A)  5 to 10 percent 
B)  8 to 15 percent 
C)  22 to 25 percent 
D)  Up to 50 percent 
E)  None is recovered.

Question 20

The maximum sustainable yield is best defined as the ________.

Accepted Answer

A)  highest catch that can be taken without overfishing 
B)  maximum fishing effort allowed after overfishing is reached 
C)  highest catch that will pay the minimum cost of the fishing effort 
D)  minimum catch that will still allow the population to grow 
E)  the annual size of the catch that will balance natural death and predation 
A)  highest catch that can be taken without overfishing 
B)  maximum fishing effort allowed after overfishing is reached 
C)  highest catch that will pay the minimum cost of the fishing effort 
D)  minimum catch that will still allow the population to grow 
E)  the annual size of the catch that will balance natural death and predation

Marine biological invaders arrive ________.

Human impacts on the planet have become prominent since approximately ________.

Material accidentally lost at sea is called flotsam, while material deliberately discarded is called jetsam.

Hypoxia ________.

Over the past two decades, coastal wetland loss in the regions of the Great Lakes, Atlantic Ocean, and the Gulf of Mexico has resulted in approximately what percentage being lost?

The sea is so vast that it can easily absorb any pollutants we dump into it with little harm to the environment.

Clean-up efforts for oil spills are often as destructive as the oil spill.

The Federal Clean Water Act was passed in ________.

The enforcement of the international convention for the prevention of pollution from ships (the origin of the U.S. Marine Plastic Pollution and Control Act of 1987) in international waters is implemented by ________.

Despite the growth in commercial fishing and the exploitation of new fishing stocks, world fish harvests have remained nearly constant over the last decade.

Only animals are considered invasive species.

Dumping the muds from dredged harbors offshore does not affect the coastal sediments.

As plastics discarded in the marine environment degrade, they can produce and concentrate

The effects of overfishing cease immediately when fishing is stopped.

The size of the hypoxic dead zone in the Gulf of Mexico appears to vary annually in response to all of the following except ________.

Pollution is best described as ________.

Mariculture, or aquaculture, has about the same relationship to commercial fishing as farming does to hunting.

There is evidence for overfishing since approximately ________.

How much oil is usually recovered after a spill?

The maximum sustainable yield is best defined as the ________.

The Water Planet

Earth Structure and Plate Tectonics

The Sea Floor and Its Sediments

The Physical Properties of Water

The Chemistry of Seawater

The Atmosphere and the Oceans

Ocean Structure and Circulation

The Waves

The Tides

Coasts, Beaches, and Estuaries

The Living Ocean

The Plankton, Productivity, and Food Webs

The Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

The Oceans and Climate Disruption

Filters

Exam 15: Environmental Issues

Marine biological invaders arrive ________.

Human impacts on the planet have become prominent since approximately ________.

Material accidentally lost at sea is called flotsam, while material deliberately discarded is called jetsam.

Hypoxia ________.

Over the past two decades, coastal wetland loss in the regions of the Great Lakes, Atlantic Ocean, and the Gulf of Mexico has resulted in approximately what percentage being lost?

The sea is so vast that it can easily absorb any pollutants we dump into it with little harm to the environment.

Clean-up efforts for oil spills are often as destructive as the oil spill.

The Federal Clean Water Act was passed in ________.

The enforcement of the international convention for the prevention of pollution from ships (the origin of the U.S. Marine Plastic Pollution and Control Act of 1987) in international waters is implemented by ________.

Despite the growth in commercial fishing and the exploitation of new fishing stocks, world fish harvests have remained nearly constant over the last decade.

Only animals are considered invasive species.

Dumping the muds from dredged harbors offshore does not affect the coastal sediments.

As plastics discarded in the marine environment degrade, they can produce and concentrate

The effects of overfishing cease immediately when fishing is stopped.

The size of the hypoxic dead zone in the Gulf of Mexico appears to vary annually in response to all of the following except ________.

Pollution is best described as ________.

Mariculture, or aquaculture, has about the same relationship to commercial fishing as farming does to hunting.

There is evidence for overfishing since approximately ________.

How much oil is usually recovered after a spill?

The maximum sustainable yield is best defined as the ________.

The Water Planet

Earth Structure and Plate Tectonics

The Sea Floor and Its Sediments

The Physical Properties of Water

The Chemistry of Seawater

The Atmosphere and the Oceans

Ocean Structure and Circulation

The Waves

The Tides

Coasts, Beaches, and Estuaries

The Living Ocean

The Plankton, Productivity, and Food Webs

The Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

The Oceans and Climate Disruption

Filters