Oceanography Questions
Duxbury Chapter 13

  1. What was the pollutant that poisoned the fishing community of Minamata, Japan?
    Lead
    Mercury
    PCBs
    Petroleum
    Sewage

  2. Where did the largest volume oil spill of all time occur?
    Alaska
    France
    Gulf of Mexico
    Massachusetts
    Virginia

  3. Where did the largest tanker spill of all time occur?
    Alaska
    France
    Gulf of Mexico
    Massachusetts
    Virginia

  4. Where did the largest tanker spill in the United States occur?
    Alaska
    California
    Massachusetts
    Texas
    Virginia

  5. What is the half-life for oil dissipation in coastal sediments?
    1 year
    2 years
    40 years
    7 months
    8 days

  6. What type of solid waste is the most hazardous to marine wildlife?
    Glass
    Metal
    Paper
    Plastic
    Sewage

  7. In what year did large masses of garbage wash up on shores of the East Coast?
    1972
    1979
    1981
    1988
    1991

  8. What was the target year for the elimination of all sewage dumping into the ocean?
    1972
    1979
    1981
    1988
    1991

  9. What is the main source of PCBs in the oceans?
    Acid rain
    Deep-sea vents
    Human activities
    Sewage breakdown
    Wetland marshes

  10. What are the main documented harmful effects of PCBs in the oceans?
    Egg shell thinning in sea birds
    Marine mammal, reptile, and bird suffocations
    Red tide plumes
    Sea lion abortions and shrimp deaths
    Shellfish poisoning

  11. What are the main documented harmful effects of DDT in the oceans?
    Egg shell thinning in sea birds
    Marine mammal, reptile, and bird suffocations
    Red tide plumes
    Sea lion abortions and shrimp deaths
    Shellfish poisoning

  12. What are the main documented harmful effects of plastics in the ocean?
    Egg shell thinning in sea birds
    Marine mammal, reptile, and bird suffocations
    Red tide plumes
    Sea lion abortions and shrimp deaths
    Shellfish poisoning

  13. In what year was the first United Nations conference held on the Law of the Sea?
    1958
    1964
    1972
    1982
    1994

  14. In what year was the Law of the Sea finally ratified?
    1958
    1964
    1972
    1982
    1994

  15. What was the main sticking point that had to be resolved before the Law of the Sea could be approved?
    Arbitration of disputes
    Fishing limits
    Seabed mining
    Ship passage
    Width of the Exclusive Economic Zone

  16. What is the width of the Territorial Sea in the Law of the Sea treaty?
    12 miles
    200 miles
    3 miles
    350 miles
    80 miles

  17. What is the width of the Exclusive Economic Zone in the Law of the Sea treaty under most circumstances?
    12 miles
    200 miles
    3 miles
    350 miles
    80 miles

  18. What is the main factor controlling the potential size of a fishery?
    Nitrogen upwelling
    Predators
    Sunlight
    Water salinity
    Water temperature

  19. Which fishery underwent a collapse in 1972 due to overfishing and an El Niņo?
    Anchovy
    Cod
    Pollock
    Salmon
    Tuna

  20. Which fishery is detrimental to dolphins?
    Anchovy
    Cod
    Pollock
    Salmon
    Tuna

  21. What group of marine animals has been most successfully used in mariculture?
    Clams
    Oysters and mussels
    Salmon
    Shrimp and lobsters
    Squid and octopus

  22. What is the main energy resource currently being obtained from the oceans?
    Ocean Thermal Energy Conversion
    Petroleum
    Tidal power
    Wave energy
    Wind energy

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