5.1 Soil

5.1 Soil Quiz

IB Environmental Systems and Societies HL: Quiz

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5 questions, one answer each

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  1. 1. (HL) Which horizon is the parent rock?

    • A. O
    • B. A
    • C. B
    • D. C

  2. 2. (HL) Which is NOT a factor in soil formation?

    • A. Climate
    • B. Time
    • C. Organisms
    • D. Tidal range

  3. 3. (HL) Which pair of gases is released from soil carbon?

    • A. Methane and carbon dioxide
    • B. Oxygen and nitrogen
    • C. Ozone and argon
    • D. Hydrogen and helium

  4. 4. A soil where input of dead organic matter exceeds decomposition is a carbon:

    • A. Source
    • B. Sink
    • C. Horizon
    • D. Output

  5. 5. (HL) A high bulk density suggests a soil that is:

    • A. Loose and airy
    • B. More compacted
    • C. Always acidic
    • D. Rich in humus

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