Simple. The Columbian Exchange exchanged diseased, people, plants, food, and animals. The Americas adapted with new plants and animals like cattle, chicken, etc., and more slaves. Europe gained potatoes, tomatoes, corn, squash, punpkin, etc.
New societies could depend on new sources of food, new animals. That also improved their local economy, and knowledge (learning)
I could be wrong but I think its 2
Blitzkrieg = a military tactic that uses mobile forces and concentrated fire power in order to shock and disorganize the opposing side
-it was used by Hitler in WWII
Answer:
he gave a public address appealing to southerners to obey the new laws. ( just took a test ) hope it helps:)
Explanation: