3.2 Human impact on biodiversity

3.2 Human impact on biodiversity Quiz

IB Environmental Systems and Societies HL: Quiz

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5 questions, one answer each

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  1. 1. (HL) A hotspot must have lost at least what proportion of its original habitat?

    • A. 10%
    • B. 30%
    • C. 50%
    • D. 70%

  2. 2. Which is a direct impact on biodiversity?

    • A. Climate change
    • B. Overfishing
    • C. Acid rain
    • D. Nutrient runoff

  3. 3. The Red List category for a species surviving only in captivity is:

    • A. Extinct
    • B. Extinct in the Wild
    • C. Critically Endangered
    • D. Data Deficient

  4. 4. (HL) A reserve excludes local people who depend on it for fuelwood without compensation. This raises an issue of:

    • A. Environmental justice
    • B. Speciation
    • C. Natural selection
    • D. Pollination

  5. 5. (HL) The loss of biosphere integrity boundary shows:

    • A. Extinctions are below natural rates
    • B. Extinctions have crossed a critical threshold
    • C. No extinctions have occurred
    • D. Hotspots have recovered

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