What type of caffeine did 15th century European explorers discover in Mexico?
A) coffee
B) tea
C) the cacao plant
D) the kola nut
Correct Answer:
Verified
Q1: Cocoa is primarily produced in .
A)Brazil
B)Africa
C)the United
Q2: Peak levels of caffeine after taking a
Q9: Tea contains as well as caffeine.
A) theophylline
B)
Q10: Citizens of are the world's top coffee
Q13: _ is the world's leading producer of
Q13: Caffeine-producing plants are indigenous to .
A) China
B)
Q15: Estimates are that of the world's population
Q16: Which popular soft drink contains the highest
Q17: In the United States, caffeine is most
Q30: Research has indicated that little tolerance to
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