WorksheetsOceanography Marine Ecosystems
Total questions: 18
Worksheet time: 5hrs 30mins
Marine debris mostly originates from oceangoing ships.
True
False
According to the United Nations, marine debris is possibly one of the most solvable pollution problems in the world.
True
False
Pollution from many nations contributes to the Great Pacific Garbage Patch.
True
False
Because they are manmade, fish farms are not considered fisheries.
True
False
Bottom trawling is a destructive fishing practice that destroys ocean habitats.
True
False
Long line fishing, drift nets, and trawling all produce an insignificant amount of by-catch.
True
False
Long line fishing and drift nets are hazardous to fish and other marine animals.
True
False
Marine debris is best described as being composed of _______.
solid garbage
untreated sewage
toxic chemicals
things discarded by humans
Which of the following best explains why marine debris is not caused solely by countries bordering the ocean?
Marine debris mostly originates from oceangoing ships.
Debris is carried to the ocean by winds, rivers, and storms.
Marine debris originates from natural sources.
None of the above
It is best to say that marine debris _______.
is a hazard to marine animals
degrading ocean health
a pervasive, global pollution problem
all of the above
The Great Pacific Garbage Patch is best described as _______.
a floating island of garbage in the Pacific ocean the size of Texas
a garbage patch formed of clusters of plastic debris
a patch of densely polluted water the size of Texas in the Pacific ocean
the result of oceangoing ship pollution
The Great Pacific Garbage Patch will be difficult to physically clean up because _______.
it lies in international waters
no single nation is responsible for creating it
filtering out the plastic will also remove plankton
all of the above
Which of the following is an impact of fishing on fisheries?
an increase of fishery health
an increase in fishery populations
the discovery of new fisheries
none of the above
Which of the following best explains the current state of the majority of the world’s fisheries?
they are being sustainably harvested
they are currently overfished
they are currently underfished
they are already depleted
Which of the following best explains the environmental problems associated with trawling?
Trawling always destroys sea floor ecologies.
Trawling gathers fish indiscriminately.
Trawling is too selective at gathering fish.
All of the above
Seafood Watch is a program that identifies sustainably harvested, ocean friendly seafood in order to _______.
gather evidence of fishermen violating international law
allow consumers to make environmentally responsible choices
increase the price fishermen receive for their catches
increase the sale and consumption of seafood
Which of the following is not a goal of the Seafood Watch program?
to promote sustainable fishing
to identify unsustainable sources of fish
to increase fish sales
to improve ocean health
Which of the following is not a possible consequence of animals ingesting marine debris?
injury
starvation
suffocation
malnutrition
