Uuni
which is the term for concepts in a study, such as the average age of a
person upon acquiring his or her first job and the average salary he or she
was paid for that job?
o
a. results
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b. variables
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c. outcomes
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d. predictions

Christopher Columbus introduced horses, sugar plants, and disease to the New World, while facilitating the introduction of New World commodities like sugar, tobacco, chocolate, and potatoes to the Old World. The process by which commodities, people, and diseases crossed the Atlantic is known as the Columbian Exchange.