Estuary Last Test Ch 18,19, 20

50 Questions | Total Attempts: 49

SettingsSettingsSettings
Please wait...
River Quizzes & Trivia

.


Related Topics
Questions and Answers
  • 1. 
    **Which one of the following applies to a valley glacier that lengthens (extends its terminus downslope) over a period of many years?
    • A. 

      Wastage exceeds accumulation

    • B. 

      Accumulation exceeds wastage

    • C. 

      Accumulation and wastage are about equal

    • D. 

      None of the above.

  • 2. 
    What type of moraine is formed by the merging of two lateral moraines at a junction of two valley glaciers?
    • A. 

      Kettle

    • B. 

      Ground

    • C. 

      Terminal

    • D. 

      Medial

  • 3. 
    __________ is one of the two, major flow mechanisms in a glacier.
    • A. 

      Frost heaving

    • B. 

      Crevassal Slip

    • C. 

      Morainal Sliding

    • D. 

      Basal Slip (Sliding)

  • 4. 
    The_______ was the most recent Pleistocene glacial episode in North America.
    • A. 

      Kansan

    • B. 

      Indianan

    • C. 

      Wisconsinan

    • D. 

      Dakotan

  • 5. 
    _____ are erosional features produced by valley/alpine glaciers.
    • A. 

      Drumlins

    • B. 

      Cirques

    • C. 

      Moraines

    • D. 

      Eskers

  • 6. 
    The two types of glaciers are ________.
    • A. 

      Valley and mountain

    • B. 

      Continental and polar

    • C. 

      Valley (alpine) and continental

    • D. 

      Polar and mountain

  • 7. 
    The cross-valley profile of a valley eroded by an alpine glacier is:
    • A. 

      “U” shaped

    • B. 

      “V” shaped

    • C. 

      “S” shaped

    • D. 

      “A” shaped

    • E. 

      None of the above

  • 8. 
    _______ first developed the theory that small variations in the Earth-Sun distance were responsible for short-term climate oscillations (1000-100,000).
    • A. 

      H. Goering

    • B. 

      Louis Agassiz

    • C. 

      M. Milankovich

    • D. 

      H. Marcee

  • 9. 
    A(n)______ is similar in appearance to a sinkhole of a karst area.
    • A. 

      Kettle

    • B. 

      Esker

    • C. 

      Cirque

    • D. 

      Moraine

    • E. 

      None of the above

  • 10. 
    Where is the world’s second largest continental ice sheet?
    • A. 

      Iceland

    • B. 

      Siberia

    • C. 

      Antarctica

    • D. 

      Greenland

    • E. 

      None of the above

  • 11. 
    _______ have rainfall amounts and soil moisture contents between those of true deserts and humid lands.
    • A. 

      Steppes

    • B. 

      Tundras

    • C. 

      Sundras

    • D. 

      Sabkhas

  • 12. 
    All of the following statements concerning dry lands are true except for:
    • A. 

      Precipitation totals are low; dew points are lower in the summer than winter.

    • B. 

      Evaporation potential exceeds actual precipitation.

    • C. 

      Storms are infrequent and rainfall amounts are highly variable.

    • D. 

      Wind is the dominant agent of erosion and sediment transport.

  • 13. 
    A ________ is an intermittent stream channel in the dry land areas of the western United States.
    • A. 

      Wash

    • B. 

      Playa

    • C. 

      Rivulet

    • D. 

      Rill

  • 14. 
    Most dry lands lie between_________degrees north and south of the equator.
    • A. 

      5 and 10

    • B. 

      20 and 30

    • C. 

      40 and 50

    • D. 

      0 and 5

  • 15. 
    Which of the following best describes the climatic factors that cause low latitude deserts like the Sahara in Africa?
    • A. 

      Cool, dry air aloft is descending; surface winds are blowing toward the equator.

    • B. 

      Warm, humid air aloft is descending; surface winds blow away from the equator

    • C. 

      Warm, humid air is rising; surface winds are calm.

    • D. 

      Cool, dry air at the surface is rising, causing winds to blow away from the equator.

  • 16. 
    Clay and silt left over from dunes or glacial rock flour that were transported long distances by winds are called:
    • A. 

      Cross beds

    • B. 

      Dunes

    • C. 

      Till

    • D. 

      Loess

  • 17. 
    What controls erosion and deposition in eolian environments?
    • A. 

      Wind speed

    • B. 

      Barometric pressure

    • C. 

      Temperatures

    • D. 

      Latitude and longitude

  • 18. 
    Desertification:
    • A. 

      Is increasingly becoming a problem

    • B. 

      Is a natural process

    • C. 

      Is exacerbated by human processes

    • D. 

      Results in droughts and famine

    • E. 

      All of the above

  • 19. 
    How is desert pavement formed?
    • A. 

      Blowing wind removes fine-size particles; coarser particles abrades to sand size

    • B. 

      Intense chemical weathering removes the sand and silt particles, leaving coarse rock debris covering the land surface

    • C. 

      Running water deposits gravel and sand over finer sized particles.

    • D. 

      Deflation and sheet wash remove fine sized particles leaving coarse weathered rock fragments concentrated at the surface.

  • 20. 
    Type of dune is illustrated below? (looks like a wavy star shaped pattern)
    • A. 

      Longitudinal

    • B. 

      Transverse

    • C. 

      Star

    • D. 

      Parabolic

  • 21. 
    ______ tide is an incoming or rising tide.
    • A. 

      Flood

    • B. 

      Rip

    • C. 

      Drift

    • D. 

      Ebb

  • 22. 
    Over the past few thousand years, how, if at all, has sea level been changing?
    • A. 

      It has fallen about 10 inches per century

    • B. 

      It has remained about the same

    • C. 

      It has risen about 10 centimeters per century

    • D. 

      None of the above

  • 23. 
    ****Large estuaries are more common on a _______ coastline.
    • A. 

      Emergent

    • B. 

      Submergent

    • C. 

      Stable

    • D. 

      Retreating

    • E. 

      None of the above

  • 24. 
    Longshore drift:
    • A. 

      Causes mass movement of sediment downshore

    • B. 

      Creates a loss of sediment from some beaches

    • C. 

      Creates an increase in sediment on some beaches

    • D. 

      Can be stabilized by groins and jetties

    • E. 

      All of the above

  • 25. 
    **Incoming waves slow down and rotate towards the orientation of being parallel to the shoreline. This process is known as______.
    • A. 

      Relaxing

    • B. 

      Reflection

    • C. 

      Refraction

    • D. 

      Refluxing

    • E. 

      Recalcitrating