<span>They show bravery by accepting that they have to be in the war. The doughboys don't think of it in a negative way they think of all the positive things about the war. Hope this answers the question. Have a nice day.</span>
Answer:
The Columbian Exchange, the largest part of a more general process of biological globalization that followed the transoceanic voyaging of the 15th and 16th centuries. ... The consequences profoundly shaped world history in the ensuing centuries, most obviously in the Americas, Europe, and Africa.
<span>Southern slaveholders
enslaved African Americans
African American soldiers
Northern slaveholders</span>
