Oceans

30 Questions | Total Attempts: 57

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Oceans

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Questions and Answers
  • 1. 
    The bottom of the ocean
    • A. 

      Is hard and bare

    • B. 

      Consists of sediment, about .3 miles worth of rock particles and organic remains

    • C. 

      Is on average about 200m under sea level

  • 2. 
    Reefs
    • A. 

      Grow in shallow, warm and clear oceans

    • B. 

      Grow in cold, deep, and clear oceans

    • C. 

      Consists of calcium-rich and nektonic organisms

  • 3. 
    Submarine canyons run across
    • A. 

      Bottom currents

    • B. 

      Earthquakes

    • C. 

      Turbidity currents

  • 4. 
    The Flattest feature on earth is
    • A. 

      Continental Shelf

    • B. 

      Continental Rise

    • C. 

      Abyssal Plain

  • 5. 
    Guyots are 
    • A. 

      Conical undersea mountains or seamounts which were uplifted above the sea level

    • B. 

      Are flat-topped undersea mountains which once existed near the sea level, but later subsided several hundreds of meters below sea level

    • C. 

      Undersea volcanic mountains with no biogenic materials at their tops

  • 6. 
    Waves in oceans are generated by
    • A. 

      Wind blowing across the water surface

    • B. 

      The tides

    • C. 

      Solar Energy

  • 7. 
    Two major chemical components of ocean waters are
    • A. 

      Calcium and Carbonate

    • B. 

      Sodium and Chloride

    • C. 

      Sodium and Carbonate

  • 8. 
    The thermocline is
    • A. 

      The region of mixing between surface and deep ocean waters

    • B. 

      The deepest layer of the ocean

    • C. 

      Any area of the ocean where there is a temperature difference

  • 9. 
    Which ocean borders the United States on the east coast?
    • A. 

      Atlantic

    • B. 

      Arctic

    • C. 

      Southern

    • D. 

      Pacific

    • E. 

      Indian

  • 10. 
    Which ocean is the North Pole found in?
    • A. 

      Atlantic

    • B. 

      Arctic

    • C. 

      Southern

    • D. 

      Pacific

    • E. 

      Indian

  • 11. 
    Which ocean is south of Asia and east of Africa?
    • A. 

      Atlantic

    • B. 

      Pacific

    • C. 

      Southern

    • D. 

      Indian

    • E. 

      Arctic

  • 12. 
    What part of the water cycle is the changing of a gas to a liquid?
    • A. 

      Precipitation

    • B. 

      Evaporation

    • C. 

      Condensation

    • D. 

      None of the above

  • 13. 
    The deep zone is the bottom layer that extends from the base of the thermocline to the bottom of the ocean.
    • A. 

      True

    • B. 

      False

  • 14. 
    Which ocean is home of the mid-ocean ridge?
    • A. 

      Indian Ocean

    • B. 

      Pacific Ocean

    • C. 

      Atlantic Ocean

    • D. 

      Arctic Ocean

    • E. 

      None of the above

  • 15. 
    What ocean contains about one half the water volume of the Pacific Ocean?
    • A. 

      Arctic Ocean

    • B. 

      Indian Ocean

    • C. 

      Atlantic Ocean

    • D. 

      Mediterranean Sea

  • 16. 
    Which percentage of the Earth is covered with water?
    • A. 

      50%

    • B. 

      71%

    • C. 

      80%

    • D. 

      75%

    • E. 

      90%

  • 17. 
    What is the deepest point in the Earth's oceans?
    • A. 

      Mariana Trench

    • B. 

      South Sandwich Trench

    • C. 

      Central Basin

    • D. 

      Sigsbee Deep

    • E. 

      None of the above

  • 18. 
    The amount of dissolved salts in ocean water is called
    • A. 

      Salinity

    • B. 

      Turbidity

    • C. 

      Upwelling

    • D. 

      Current

  • 19. 
    The amount of time it takes consecutive wave crests or troughs to pass a given point is called the 
    • A. 

      Wavelength

    • B. 

      Tsunami

    • C. 

      Wave height

    • D. 

      Frequency

  • 20. 
    The deepest parts of the ocean are found in long, narrow "holes" or crevices called
    • A. 

      Trenches

    • B. 

      Reefs

    • C. 

      Guyots

    • D. 

      Seamounts

  • 21. 
    Organisms that live on the ocean floor are called
    • A. 

      Nekton

    • B. 

      Plankton

    • C. 

      Diatoms

    • D. 

      Benthos

  • 22. 
    The rising of hot water and the sinking of cold water moves the water around and creates
    • A. 

      Deep currents

    • B. 

      Surface currents

    • C. 

      Mapping

    • D. 

      Reefing

  • 23. 
    Tides are caused by 
    • A. 

      Winds

    • B. 

      Gravitational forces of the sun and moon

    • C. 

      Ocean liners

    • D. 

      The earth spinning

  • 24. 
    The lowest point of a wave is called the
    • A. 

      Crest

    • B. 

      Trough

    • C. 

      Wavelength

    • D. 

      Top

  • 25. 
    This is a relatively flat part of the continental margin covered by shallow water. 
    • A. 

      Continental slope

    • B. 

      Continental shelf

    • C. 

      Continental rise

    • D. 

      Continental plain

  • 26. 
    Large masses of limestone rocks containing the shells of animals are called
    • A. 

      Abyssal plains

    • B. 

      Continental reefs

    • C. 

      Ocean currents

    • D. 

      Submarine canyons

  • 27. 
    This is the dominant life and food source of the ocean, made of small drifting plants and animals
    • A. 

      Benthos

    • B. 

      Nekton

    • C. 

      Plankton

    • D. 

      Insects

  • 28. 
    This is the world's largest ocean
    • A. 

      Pacific Ocean

    • B. 

      Atlantic Ocean

    • C. 

      Indian Ocean

    • D. 

      Arctic Ocean

  • 29. 
    This is another term for the water in the open oceans
    • A. 

      Benthic zone

    • B. 

      Continental zone

    • C. 

      Pelagic zone

  • 30. 
    Islands are 
    • A. 

      Land that floats on the ocean

    • B. 

      The highest parts of submerged continents, volcanic peaks, or coral atolls

    • C. 

      Created when land is torn from a continent and floats away