The Congress shall have Power To lay and collect Taxes, Duties, Imposts and Excises, to pay the Debts and provide for the common Defence and general Welfare of the United States; but all Duties, Imposts and Excises shall be uniform throughout the United States.
Answer:
Slaves were used for manual labor
Explanation:
I'm pretty sure it was the Spanish conquering South America, and exploiting its resources. Hope this helps.
