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Youngbailey97 Youngbailey97
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6 years ago
How does caffeine affect human task performance?
 
  a. It increases performance.
  b. It decreases performance.
  c. It increases performance in some areas and decreases it in others.
  d. Caffeine does not affect performance.
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ytrtryytrtry
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6 years ago
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Youngbailey97 Author
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6 years ago
Brilliant
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Yesterday
Just got PERFECT on my quiz
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2 hours ago
Thank you, thank you, thank you!
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