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-Which is not one of the anthropogenic threats to seagrass meadows? A) coastal pollution B) beach development C) dredging D) sport fishing -Which is not one of the anthropogenic threats to seagrass meadows?


A) coastal pollution
B) beach development
C) dredging
D) sport fishing

E) A) and B)
F) None of the above

Correct Answer

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-A __________ is a large body of salt water that is defined by the presence of continents, peninsulas, or islands. A) gulf B) sea C) strait D) sound -A __________ is a large body of salt water that is defined by the presence of continents, peninsulas, or islands.


A) gulf
B) sea
C) strait
D) sound

E) A) and B)
F) B) and C)

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-The large circular ocean currents in the ocean basins are called __________. A) gyres B) thermoclines C) seamounts D) eddies -The large circular ocean currents in the ocean basins are called __________.


A) gyres
B) thermoclines
C) seamounts
D) eddies

E) None of the above
F) B) and C)

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-A(n) __________ forms near and parallel to the shoreline. A) fringing reef B) barrier reef C) atoll D) shelf reef -A(n) __________ forms near and parallel to the shoreline.


A) fringing reef
B) barrier reef
C) atoll
D) shelf reef

E) A) and B)
F) A) and C)

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-Most of the world's remaining mangroves are found in __________. A) Asia B) Africa C) Oceania D) South America -Most of the world's remaining mangroves are found in __________.


A) Asia
B) Africa
C) Oceania
D) South America

E) B) and D)
F) None of the above

Correct Answer

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-According to the pie chart, __________ percent of coral reefs today are classified as healthy. A) 15 B) 19 C) 20 D) 46 -According to the pie chart, __________ percent of coral reefs today are classified as healthy.


A) 15
B) 19
C) 20
D) 46

E) A) and C)
F) B) and D)

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-The epipelagic zone occurs at a depth of __________ meters. A) 0 to 200 B) 200 to 1,000 C) 1,000 to 4,000 D) 4,000 to 6,000 -The epipelagic zone occurs at a depth of __________ meters.


A) 0 to 200
B) 200 to 1,000
C) 1,000 to 4,000
D) 4,000 to 6,000

E) All of the above
F) B) and C)

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-If there were strong upwelling in tropical waters, do you think the Arctic tern would migrate such a long distance? Explain. -If there were strong upwelling in tropical waters, do you think the Arctic tern would migrate such a long distance? Explain.

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It is reasonable to assume the...

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-What is the connection between burning fossil fuels and ocean acidity? In this regard, how have the oceans reacted to slow atmospheric warming? -What is the connection between burning fossil fuels and ocean acidity? In this regard, how have the oceans reacted to slow atmospheric warming?

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Fossil fuels put carbon dioxide into the...

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-Which lettered box in the figure points to the abyssal plain? A) A B) C C) D D) F -Which lettered box in the figure points to the abyssal plain?


A) A
B) C
C) D
D) F

E) A) and D)
F) None of the above

Correct Answer

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-About __________ percent of all plastic made is recycled. A) 5 to 10 B) 10 to 20 C) 20 to 30 D) 30 to 40 -About __________ percent of all plastic made is recycled.


A) 5 to 10
B) 10 to 20
C) 20 to 30
D) 30 to 40

E) None of the above
F) A) and C)

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-Which statement does not accurately describe beaches and rocky shorelines? A) They are low-energy environments. B) Biodiversity is not very high in these environments. C) Tide pool communities are found in these environments. D) Coastal erosion of sand is a significant threat to beaches. -Which statement does not accurately describe beaches and rocky shorelines?


A) They are low-energy environments.
B) Biodiversity is not very high in these environments.
C) Tide pool communities are found in these environments.
D) Coastal erosion of sand is a significant threat to beaches.

E) A) and C)
F) All of the above

Correct Answer

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-A(n) __________ runs parallel to the shoreline and forms a deep-water lagoon behind it. A) fringing reef B) barrier reef C) atoll D) shelf reef -A(n) __________ runs parallel to the shoreline and forms a deep-water lagoon behind it.


A) fringing reef
B) barrier reef
C) atoll
D) shelf reef

E) A) and D)
F) None of the above

Correct Answer

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-The shallow, sloping areas of seafloor near the continents are called __________. A) abyssal plains B) mid-ocean ridges C) seamounts D) continental shelves -The shallow, sloping areas of seafloor near the continents are called __________.


A) abyssal plains
B) mid-ocean ridges
C) seamounts
D) continental shelves

E) A) and D)
F) B) and D)

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-Between 1980 and 2000, __________ percent of the world's mangrove forests were cut down by people. A) 20 B) 30 C) 40 D) 50 -Between 1980 and 2000, __________ percent of the world's mangrove forests were cut down by people.


A) 20
B) 30
C) 40
D) 50

E) A) and C)
F) A) and B)

Correct Answer

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-Estuaries are commercially valuable because they provide habitat for adult commercial fish species. -Estuaries are commercially valuable because they provide habitat for adult commercial fish species.

A) True
B) False

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-Seawater salinity comes from streams that flow into the oceans. -Seawater salinity comes from streams that flow into the oceans.

A) True
B) False

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-Which lettered location on the map shows the transition between tropical and polar waters? A) A B) B C) C D) D -Which lettered location on the map shows the transition between tropical and polar waters?


A) A
B) B
C) C
D) D

E) None of the above
F) All of the above

Correct Answer

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-Which is not among the main threats kelp forests face? A) pollution and sediment runoff from streams B) ocean acidification C) warming oceans D) removal of keystone species -Which is not among the main threats kelp forests face?


A) pollution and sediment runoff from streams
B) ocean acidification
C) warming oceans
D) removal of keystone species

E) A) and C)
F) All of the above

Correct Answer

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-The open waters cover __________ percent of Earth's surface. A) 50 B) 63 C) 71 D) 92 -The open waters cover __________ percent of Earth's surface.


A) 50
B) 63
C) 71
D) 92

E) A) and C)
F) A) and B)

Correct Answer

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Showing 61 - 80 of 135

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