Answers5120VB Environmental Science Sem B- BTopic Test

Topic Test Answers

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34
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Which of the following is most negatively affected by fishing practices?

A
deep sea corals
B
ocean microbes
C
methane hydrates
D
autonomous underwater explorers
35
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The U.S. Integrated Ocean Observing System (IOOS) is best described as _______.

A
a public and private partnership to increase understanding of the oceans
B
a program to improve ocean safety
C
a partnership aimed at protecting the environment
D
all of the above
36

Seafood Watch is a program that identifies sustainably harvested, ocean friendly seafood in order to _______.

A
gather evidence of fishermen violating international law
B
allow consumers to make environmentally responsible choices
C
increase the price fishermen receive for their catches
D
increase the sale and consumption of seafood
37

Which of the following is not one of the three major structures of coral reefs?

A
planulae
B
fringing
C
barrier
D
atoll
38

How has human use of salt marshes changed over time?

A
Humans have come to value salt marshes and now seek to preserve and restore them.
B
Humans now use drained salt marshes exclusively for agriculture.
C
Humans have begun to use salt marshes for landfills.
D
Humans have begun to use marsh land for housing and commercial development.
39

Why are coral reefs overexploited?

A
Coral is an important food resource.
B
Coral and its organisms are valuable commodities in the aquarium industry.
C
Coral reefs inhibit recreational activities.
D
All of the above
40

Which of the following does not explain the importance of mangrove forests?

A
They provide shelter to organisms on high energy coasts.
B
They help prevent erosion along coasts.
C
They increase surface runoff and flooding.
D
They filter and process pollutants out of the environment.
41

It is crucial to study ocean microbes because _______.

A
they control the major biogeochemical cycles that keep Earth’s biosphere in balance
B
they are a significant source of greenhouse gases and pollution
C
they are frequently used as food sources in developing nations
D
they provide a significant alternative energy source used to replace coal and oil
42

Harlequin shrimp _______.

A
control starfish populations
B
clean parasites from select fish species
C
control tubeworm populations
D
hide within coral using their special camouflage
43

Landlocked nations do not contribute to marine debris.

A
T
B
F
44

Legislation has been ineffective at preserving coral reefs.

A
T
B
F
45

The principle difference between where salt marshes and mangrove forests grow is the salinity of the water.

A
T
B
F
46

Explain the issues associated with coral harvesting methods.

Answer not available
47

The Nereus is a(n) _______.

A
new class of submarine
B
species of fish
C
unmanned deep-sea robot
D
ocean mapping program
48

Explain what is being done to restore salt marsh habitats.

Answer not available
49

How can solar irradiance cause coral bleaching?

Answer not available

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