Answer:
The 13th Amendment forever abolished slavery as an institution in all U.S. states and territories. In addition to banning slavery,
The Berlin conference in 1878 was an agreement to divide up African colonies between European powers, such as Germany, Portugal, France< England and Belgium. This was also dubbed "The Scramble for Africa" and led to the exploitation of Africans, notably in Belgian Congo and Rwanda
<span>D. It was an ecological transformation.</span>
Columbian Exchange was the introduction of Old World plants and animals into the New World and the other way. An example of this was the introduction of tomatoes and potatoes to Europe.