1. a) <span>increased job opportunities for African Americans
2. </span><span>d) led Stalin to postpone a Soviet invasion of Japan
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3. </span><span>b) The leaders of Great Britain and the Soviet Union supported dropping the bomb.</span>
A free-trade agreement occurs when all participating nations are able to trade with each other without having to pay tariffs.
For example, NAFTA (North American Free Trade Agreement) established by President George H. W. Bush allowed the participating countries to trade without paying tariffs.
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2. Many slave codes prohibited enslaved people from learning to read and write