<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.
They were engaged in Activism.
Answer:
b. Germany was able to fight a two-front war in Western and Eastern Europe.
Explanation:
Schema.
First he wanted to take revenge on the countries that made the Versailles treaty because it was unfair to Germany. Then he wanted to cleanse the world of Jews, Slavs, and anyone who was not of the Aryan race.