Question 1

Addition of harmful substances to the environment is called eutrophication.

Accepted Answer

A) True 
 B)False

Question 2

The Exxon Valdez oil spill ________.

Accepted Answer

A)  was equal in volume to the Persian Gulf spill 
B)  dissipated quickly in warmer inshore water 
C)  was 99 percent recovered using new sophisticated methods 
D)  All of these are correct. 
E)  None of these is correct. 
A)  was equal in volume to the Persian Gulf spill 
B)  dissipated quickly in warmer inshore water 
C)  was 99 percent recovered using new sophisticated methods 
D)  All of these are correct. 
E)  None of these is correct.

Question 3

Ecosystem-based management allows for diverse societal use of fish stocks including all of the following except ________.

Accepted Answer

A)  heavy metals 
B)  PCBs 
C)  excess nutrients 
D)  chlorinated compounds 
E)  All of these are correct.
F) None of these is correct. 
A)  heavy metals 
B)  PCBs 
C)  excess nutrients 
D)  chlorinated compounds 
E)  All of these are correct.
F) None of these is correct.

Question 4

The ecology of San Francisco Bay is being disrupted by ________.

Accepted Answer

A)  Asian clams 
B)  comb jellies 
C)  European green crabs 
D)  Asian clams and European green crabs 
E)  Asian clams, comb jellies, and European green crabs 
A)  Asian clams 
B)  comb jellies 
C)  European green crabs 
D)  Asian clams and European green crabs 
E)  Asian clams, comb jellies, and European green crabs

Question 5

The term "bycatch" refers to ________.

Accepted Answer

A)  all fish caught in nets 
B)  animals other than fish caught in nets 
C)  fish that are processed on board the fishing vessel 
D)  fish other than the targeted species, often thrown away 
E)  None of these is correct. 
A)  all fish caught in nets 
B)  animals other than fish caught in nets 
C)  fish that are processed on board the fishing vessel 
D)  fish other than the targeted species, often thrown away 
E)  None of these is correct.

Question 6

Sessile benthos in a hypoxic zone generally begin to die when oxygen in the water drops to ________ ppm.

Accepted Answer

A)  15 
B)  10 
C)  5 
D)  2 
E)  0 
A)  15 
B)  10 
C)  5 
D)  2 
E)  0

Question 7

There are more than 6,000 marine-protected areas (MPAs) worldwide accounting for approximately ________ percent of the world's surface ocean.

Accepted Answer

A)  1 
B)  2 
C)  5 
D)  10 
E)  20 
A)  1 
B)  2 
C)  5 
D)  10 
E)  20

Question 8

The Mississippi delta is losing area because the supply of sediment is less than the rates of delta erosion and subsidence.

Accepted Answer

A) True 
 B)False

Question 9

The number of human-caused oil spills in the ocean have decreased since the 1970s.

Accepted Answer

A) True 
 B)False

Question 10

Continued catches above the maximum sustainable yield ________.

Accepted Answer

A)  can be increased to prevent overfishing 
B)  will result in underutilization 
C)  will result in a decrease of fishing effort 
D)  must be decreased in order to decrease population size 
E)  will result in overfishing and the crash of fish populations 
A)  can be increased to prevent overfishing 
B)  will result in underutilization 
C)  will result in a decrease of fishing effort 
D)  must be decreased in order to decrease population size 
E)  will result in overfishing and the crash of fish populations

Question 11

Municipal solid waste (MSW) can include yard trimmings, food scraps, plastics, and packaging containers.

Accepted Answer

A) True 
 B)False

Question 12

Biological invasions can occur in response to ________.

Accepted Answer

A)  shifts in climate patterns 
B)  plate tectonics 
C)  ballast water transport 
D)  All of these choices are correct. 
E)  None of these choices is correct. 
A)  shifts in climate patterns 
B)  plate tectonics 
C)  ballast water transport 
D)  All of these choices are correct. 
E)  None of these choices is correct.

Question 13

Ballast water is one of the main culprits introducing invasive species into new areas.

Accepted Answer

A) True 
 B)False

Question 14

The Marine Plastic Pollution and Control Act ________.

Accepted Answer

A)  prohibits dumping plastic debris in coastal oceans only 
B)  prohibits dumping plastic debris everywhere in the oceans 
C)  is enforced by the United Nations Ocean patrol 
D)  has eliminated the plastic trash problem in the oceans 
E)  prohibits dumping plastic debris everywhere in the oceans and is enforced by the United Nations Ocean patrol 
A)  prohibits dumping plastic debris in coastal oceans only 
B)  prohibits dumping plastic debris everywhere in the oceans 
C)  is enforced by the United Nations Ocean patrol 
D)  has eliminated the plastic trash problem in the oceans 
E)  prohibits dumping plastic debris everywhere in the oceans and is enforced by the United Nations Ocean patrol

Question 15

The fraction of nutrients responsible for the Gulf of Mexico hypoxic zone that are anthropogenic is:

Accepted Answer

A)  10 percent 
B)  30 percent 
C)  70 percent 
D)  90 percent 
E)  100 percent 
A)  10 percent 
B)  30 percent 
C)  70 percent 
D)  90 percent 
E)  100 percent

Question 16

Which of the following organisms are expected to show the highest concentration of DDT and other chlorinated hydrocarbons in its tissues?

Accepted Answer

A)  filter-feeding fishes 
B)  carnivorous fishes 
C)  phytoplankton 
D)  sea lions 
E)  zooplankton 
A)  filter-feeding fishes 
B)  carnivorous fishes 
C)  phytoplankton 
D)  sea lions 
E)  zooplankton

Question 17

Simultaneous removal of fish from multiple trophic levels is termed ________.

Accepted Answer

A)  sustainable fishing 
B)  fishing through the food chain 
C)  overfishing 
D)  fishing down the food chain 
A)  sustainable fishing 
B)  fishing through the food chain 
C)  overfishing 
D)  fishing down the food chain

Question 18

The number of large oil spills in the marine environment has decreased over the last 45 years.

Accepted Answer

A) True 
 B)False

Question 19

Globally, aquaculture produces about ________ percent of fish consumed by humans.

Accepted Answer

A)  50 
B)  38 
C)  24 
D)  12 
E)  2 
A)  50 
B)  38 
C)  24 
D)  12 
E)  2

Question 20

Estuary areas and associated wetlands are generally increasing in the United States today.

Accepted Answer

A) True 
 B)False

Addition of harmful substances to the environment is called eutrophication.

The Exxon Valdez oil spill ________.

Ecosystem-based management allows for diverse societal use of fish stocks including all of the following except ________.

The ecology of San Francisco Bay is being disrupted by ________.

The term "bycatch" refers to ________.

Sessile benthos in a hypoxic zone generally begin to die when oxygen in the water drops to ________ ppm.

There are more than 6,000 marine-protected areas (MPAs) worldwide accounting for approximately ________ percent of the world's surface ocean.

The Mississippi delta is losing area because the supply of sediment is less than the rates of delta erosion and subsidence.

The number of human-caused oil spills in the ocean have decreased since the 1970s.

Continued catches above the maximum sustainable yield ________.

Municipal solid waste (MSW) can include yard trimmings, food scraps, plastics, and packaging containers.

Biological invasions can occur in response to ________.

Ballast water is one of the main culprits introducing invasive species into new areas.

The Marine Plastic Pollution and Control Act ________.

The fraction of nutrients responsible for the Gulf of Mexico hypoxic zone that are anthropogenic is:

Which of the following organisms are expected to show the highest concentration of DDT and other chlorinated hydrocarbons in its tissues?

Simultaneous removal of fish from multiple trophic levels is termed ________.

The number of large oil spills in the marine environment has decreased over the last 45 years.

Globally, aquaculture produces about ________ percent of fish consumed by humans.

Estuary areas and associated wetlands are generally increasing in the United States today.

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

Addition of harmful substances to the environment is called eutrophication.

The Exxon Valdez oil spill ________.

Ecosystem-based management allows for diverse societal use of fish stocks including all of the following except ________.

The ecology of San Francisco Bay is being disrupted by ________.

The term "bycatch" refers to ________.

Sessile benthos in a hypoxic zone generally begin to die when oxygen in the water drops to ________ ppm.

There are more than 6,000 marine-protected areas (MPAs) worldwide accounting for approximately ________ percent of the world's surface ocean.

The Mississippi delta is losing area because the supply of sediment is less than the rates of delta erosion and subsidence.

The number of human-caused oil spills in the ocean have decreased since the 1970s.

Continued catches above the maximum sustainable yield ________.

Municipal solid waste (MSW) can include yard trimmings, food scraps, plastics, and packaging containers.

Biological invasions can occur in response to ________.

Ballast water is one of the main culprits introducing invasive species into new areas.

The Marine Plastic Pollution and Control Act ________.

The fraction of nutrients responsible for the Gulf of Mexico hypoxic zone that are anthropogenic is:

Which of the following organisms are expected to show the highest concentration of DDT and other chlorinated hydrocarbons in its tissues?

Simultaneous removal of fish from multiple trophic levels is termed ________.

The number of large oil spills in the marine environment has decreased over the last 45 years.

Globally, aquaculture produces about ________ percent of fish consumed by humans.

Estuary areas and associated wetlands are generally increasing in the United States today.

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