smelting a piece of iron on which heated metal is beaten in shaps
D) To fight the spread of communism.
Because of the Domino Theory they thought that if Vietnam fell into Communism, the whole region would follow. So therefore they wanted to support South Vietnam in order to contain Communism in Asia.
Agriculture plays a crucial role in the rise and development of civilizations, since it allows for there to be a "food surplus"--meaning that people other than farmers can spend time and effort developing new skills and practicing new trades.
Answer:
the Holocaust
Explanation:
the holocaust was worst not only because this event had more human deaths, but because it also led to a war.