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This unit covers other crops that provide us with consumable products such
as beverages, herbs and spices, and materials such as cloth, paper, and wood. The
historical origin and societal impact of these crops are explored.
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Explanation & Answer
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Chapter 14
Questions
1. Psychological effects of caffeine in the human body include the induction of dizziness, anxiety,
agitation irritability restlessness and insomnia and most times cause headaches. This is because
caffeine is a stimulant and with a lot of its kind it can have the above negative effects.
2. At the time of Montezuma people crashed coffee beans to prepare a drink called chocolati but
now people use chocolate and cocoa powder products of cacao tree.
3. Coca fruit extract, citric acid, caffeine, sugar,water,lime juice, vanilla and
4. The English may have introduced the coffee drink into the New York colony between 1664 and
1673. The earliest reference to coffee in America is 1668[87], at which time a beverage made
from the roasted beans, and flavored with sugar or honey, and cinnamon, was being drunk in
New York.
5. Effects theobromine on humans include, sweating, trembling and severe headaches
Chapter 17
1.Metabolic plant...