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Soil Horizons

Quiz by Timothy Fischer

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12 questions
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  • Q1
    What is the primary characteristic of the O Horizon?
    Consists of unweathered rock
    Contains calcite
    Mostly clay
    Contains organic material
    30s
  • Q2
    Which horizon is also known as the topsoil layer?
    B Horizon
    A Horizon
    C Horizon
    R Horizon
    30s
  • Q3
    In which horizon would you most likely find clay and some plant roots?
    A Horizon
    B Horizon
    R Horizon
    O Horizon
    30s
  • Q4
    What is the main characteristic of the C Horizon?
    Consists of solid bedrock
    Resembles parent material and is partially weathered
    Contains high levels of calcite
    Full of organic matter and microorganisms
    30s
  • Q5
    Which soil horizon is primarily made up of bedrock?
    C Horizon
    B Horizon
    A Horizon
    R Horizon
    30s
  • Q6
    What is the color of soil with high iron oxide and aluminum-rich clays, often found in temperate climates?
    Light gray-brown
    Brown to red-brown
    Dark gray
    Deep red
    30s
  • Q7
    Pedalfer soils are commonly found in which type of climate?
    Cold, arid regions
    Temperate climates with high rainfall
    Deserts
    Dry climates
    30s
  • Q8
    Which soil type is high in calcium carbonate and forms in drier climates?
    R Horizon soil
    Pedalfer
    Pedocal
    Laterite
    30s
  • Q9
    What characteristic is typical of laterite soils?
    Light gray in color
    High in iron oxide and aluminum oxide
    Found in colder regions
    High in organic material
    30s
  • Q10
    What color is commonly associated with laterite soils?
    Light gray-brown
    Brown
    Dark brown
    Red due to iron oxide
    30s
  • Q11
    Which of the following is true about pedalfer soil composition?
    Forms in hot, wet tropical climates
    Contains mostly iron oxide and aluminum-rich clays
    High in calcium carbonate
    Lacks significant organic material
    30s
  • Q12
    Which soil type generally has the least amount of clay due to slower chemical weathering?
    Pedalfer
    Pedocal
    Laterite
    A Horizon soil
    30s

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