Answer:
a. Columbian Exchange
Explanation:
The first Europeans that managed to get tot he New World discovered lot of things that can be used back in their homelands. Lot of new crops were discovered, animals, vast fertile lands, as well as gold and silver. Once these things were introduced back in Europe the word quickly spread out, so the interest for exploration skyrocketed. Lot of people wanted to get out of Europe and go into the New World in order to get to this things, start a new life, and get rich. This resulted in countless explorations and mass migrations toward the New World.
<span>the president was praised for his efforts in the Gulf War, but was criticized for his poor efforts in strengthening the nation's economy was: George H. Bush
George Herbert Walker Bush is an American politician who became the vice president of United States from 1981 to 1989, then climbed up the political ladder as the 41st President of the United States from 1989 to 1993</span>
I believe its D) Unemployment rates among African Americans were higher than unemployment rates among whites
