Domesticated animals: The Americas had not seen horses, pigs, or cattle prior to the arrival of the Europeans.
These animals changed how Native Americans lived, ate, and fought. They were able to use horses to travel more quickly, fight their enemies, and eventually in agriculture. The animals also brought disease which harmed the Native Americans.
D. He was a very positive leader.
After World War 1, prevalent attitudes in America included one of not supporting the US being involved in foreign affairs. World War 1 started in 194 and ended in 1918. After the First World War, isolationism became prevalent in American society. Another attitude that developed was nativism.
here's the website: www.answers.com/Q/What_attitudes_became_prevalent_in_America_after_World_War_
In the 16th century spain was the most successful country at that time, not England like most would think. Hope this helps :)