Oceans Overview Notes Pulse Check

5 Questions | Total Attempts: 521

SettingsSettingsSettings
Please wait...
Oceans Overview Notes Pulse Check


Questions and Answers
  • 1. 
    Which term refers to the measure of the amount of salts present in a body of water?
    • A. 

      Salinity

    • B. 

      Density

    • C. 

      Bioindicators

    • D. 

      Sodium chloride (NaCl)

  • 2. 
    At a location in the ocean where a river meets the ocean, the salinity will likely be
    • A. 

      Higher than that of the water surrounding it.

    • B. 

      Lower than that of the water surrounding it.

    • C. 

      The same as that of the water surrounding it.

    • D. 

      Very high.

  • 3. 
    The wide, flat area of the ocean floor which is covered in a layer of thick sediment is called the
    • A. 

      Continental shelf

    • B. 

      Continental slope

    • C. 

      Abyssal plain

    • D. 

      Submarine canyon

  • 4. 
    Ocean water temperatures vary widely depending on numerous factors.  When it comes to depth, temperatures change in a predictable way.  The water layer where temperature declines rapidly with increasing depth is called the
    • A. 

      Surface layer

    • B. 

      Thermocline

    • C. 

      Deep water layer

    • D. 

      Barometric layer

  • 5. 
    The mid-ocean ridge is a chain of mountains that runs through the middle of the Atlantic Ocean.  How did this mountain range form?
    • A. 

      It lies at a divergent plate boundary, and magma pushes up through the crust when it separates. Over time, this magma "piles up" to form mountains.

    • B. 

      It lies at a convergent plate boundary, and magma pushes up through the crust because of the intense pressure. Over time, this magma "piles up" to form mountains.

    • C. 

      As submarine canyons wear away through natural weathering and erosional processes, that material is carried by ocean currents to the center of the ocean, where it is deposited, and created mountains over many millions of years.

    • D. 

      There is no evidence to tell us exactly how these mountains formed. It is a mystery to the scientific community that has confounded us for centuries.

Back to Top Back to top