5.1 Soil

5.1 Soil Quiz

IB Environmental Systems and Societies SL: Quiz

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5 questions, one answer each

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  1. 1. Which is an output from the soil system?

    • A. Dead leaves falling
    • B. Mineral weathering
    • C. Heat loss from decomposition
    • D. Seeds arriving

  2. 2. Which nutrient do plants get from the atmosphere rather than the soil?

    • A. Nitrogen
    • B. Phosphorus
    • C. Carbon
    • D. Potassium

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

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

  4. 4. Soil texture depends on:

    • A. Sand, silt, clay and humus proportions
    • B. Depth only
    • C. Rainfall only
    • D. Colour

  5. 5. Soil contributes to biodiversity by:

    • A. Providing habitat and niches
    • B. Releasing carbon dioxide
    • C. Producing seeds
    • D. Reflecting sunlight

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