Soil Weathering Process! Trivia Quiz

19 Questions | Total Attempts: 309

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Soil Weathering Process! Trivia Quiz

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Questions and Answers
  • 1. 
    Soil is a mixture of weathered rock and ____________.
    • A. 

      Water and air

    • B. 

      Decayed organic matter

    • C. 

      Mineral fragments

    • D. 

      All of the above

  • 2. 
    The layer of soil that contains the most humus and smaller rock and mineral particles than the other layers is the _____ horizon.
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 3. 
    All of the following are direct causes of mechanical weathering except__________.
    • A. 

      Ice

    • B. 

      Tree roots

    • C. 

      Water

    • D. 

      Oxygen

  • 4. 
    Over thousands of years, _________ has chemically weathered limestone, creating caves.
    • A. 

      Caolinite clay

    • B. 

      Carbonic acid

    • C. 

      Oxidation

    • D. 

      Sediment

  • 5. 
    Chemical weathering is more rapid in a __________ climate.
    • A. 

      Dry

    • B. 

      Tropical

    • C. 

      Cold

    • D. 

      Moderate

  • 6. 
    Mechanical weathering is more rapid in a __________ climate.
    • A. 

      Dry

    • B. 

      Tropical

    • C. 

      Cold

    • D. 

      Moderate

  • 7. 
    The organic material in humus includes _______________.
    • A. 

      Plant leaves and stems

    • B. 

      Weathered rocks

    • C. 

      Sand

    • D. 

      Air

  • 8. 
    How fast weathering occurs depends on the _____________ of an area.
    • A. 

      Oxygen

    • B. 

      Climate

    • C. 

      Water

    • D. 

      Vegetation

  • 9. 
    Compared to the A horizon in a soil profile, the B horizon ________________.
    • A. 

      Is lighter in color

    • B. 

      Contains material leached from the A horizon

    • C. 

      Contains less humus

    • D. 

      All of these

  • 10. 
    The difference between mechanical and chemical weathering is _________.
    • A. 

      The length of time each takes to break up rock

    • B. 

      That each occurs in different parts of the world

    • C. 

      Only one changes the chemical composition of a rock

    • D. 

      That only chemical weathering involves water

  • 11. 
    Causes of soil erosion include ____________.
    • A. 

      Wind

    • B. 

      Water

    • C. 

      Removal of vegetation

    • D. 

      All of these

  • 12. 
    Below the C horizon is ____________.
    • A. 

      Humus

    • B. 

      Clay

    • C. 

      Bedrock

    • D. 

      More soil

  • 13. 
    Which is formed by glacial erosion
    • A. 

      Eskers

    • B. 

      Moraines

    • C. 

      Aretes

    • D. 

      Warmer climates

  • 14. 
    _____________ is the removal of minerals from the A horizon to the other horizons below by dissolving minerals with water.
    • A. 

      Humus

    • B. 

      Litter

    • C. 

      Leaching

    • D. 

      Soil profile

  • 15. 
    Which of these is not a cause of soil erosion?
    • A. 

      Running water

    • B. 

      Wind

    • C. 

      Glaciers

    • D. 

      Planting trees

  • 16. 
    ____________ is the chemical process that occurs when iron is exposed to oxygen in the air.
    • A. 

      Oxidation

    • B. 

      Climate

    • C. 

      Ice wedging

    • D. 

      Weathering

  • 17. 
    ______ affects soil development because the longer the weathering has occured, the less the soil resembles the parent rock.
    • A. 

      Parent

    • B. 

      Climate

    • C. 

      Soil

    • D. 

      Time

  • 18. 
    Small spaces between soil particles may be filled with ______ or ______ .
    • A. 

      Air or water

    • B. 

      Water or sand

    • C. 

      Air or soil

    • D. 

      Soil and sand

  • 19. 
    A soil profile is made up of different __________.
    • A. 

      Litter

    • B. 

      Humus

    • C. 

      Layers

    • D. 

      Rocks