Week 13: Issues Affecting Marine Ecosystems Answers

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1
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It is best to say that marine debris _______.

A
is a hazard to marine animals
B
degrading ocean health
C
a pervasive, global pollution problem
D
all of the above
2
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Which of the following best explains why marine debris is not caused solely by countries bordering the ocean?

A
Marine debris mostly originates from oceangoing ships.
B
Debris is carried to the ocean by winds, rivers, and storms.
C
Marine debris originates from natural sources.
D
None of the above
3

Which of the following is an impact of fishing on fisheries?

A
an increase of fishery health
B
an increase in fishery populations
C
the discovery of new fisheries
D
none of the above
4

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
5

Because they are manmade, fish farms are not considered fisheries.

A
T
B
F
6

Marine debris mostly originates from oceangoing ships.

A
T
B
F
7

Which of the following best explains the environmental problems associated with trawling?

A
Trawling always destroys sea floor ecologies.
B
Trawling gathers fish indiscriminately.
C
Trawling is too selective at gathering fish.
D
All of the above
8

Which of the following is not a goal of the Seafood Watch program?

A
to promote sustainable fishing
B
to identify unsustainable sources of fish
C
to increase fish sales
D
to improve ocean health
9

Which of the following best explains the current state of the majority of the world’s fisheries?

A
they are being sustainably harvested
B
they are currently overfished
C
they are currently underfished
D
they are already depleted
10

Long line fishing and drift nets are hazardous to fish and other marine animals.

A
T
B
F

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