Name: __________________________

1. reduced in combination with low levels of warming
   elevated in combination with low levels of warming
   elevated in combination with higher levels of warming


2. increase
   decrease


3. corn
   soybean


4. will
   will not


5. positive
   negative


6. weeds
   diseases
   insect pests
   all of these plus other climate change induced stresses


7. will eventually be
   are already being


8. can
   cannot


9. frost-free season length
   number of consecutive dry days
   number of hot nights


10. increase
    remain steady
    decrease


11. food distribution
    food safety and nutrition
    international food security
    all of these


12. Northeastern
    Southeastern
    Southwestern
    Northwestern


13. climate variability
    climate change
    extreme weather events
    all of these


14. its sensitivity to climate change
    its mobility
    its lifespan
    the availability of the resources it needs
    all of these


15. alteration of critical biological events
    substantial range shifts of many species
    both of these


16. have no effect on
    increase
    reduce


17. "one species at a time"
    "whole"


18. 3
    5
    7


19. Northeastern
    Great Plains
    Pacific Coastal
    Midwest


20. 16
    24
    35
    52


21. fire
    insect infestations
    drought
    disease outbreaks
    all of these


22. positively
    negatively
    positively or negatively


23. doubled
    tripled
    quadrupled


24. increase
    decrease

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