The North relied mostly on industry for income but the South was almost all agricultural. Without the slaves they didn't have many people left to work the land.
Answer: Europeans carried deadly (to the Native Americans) diseases
Explanation: When getting cured of a disease your body will have some type of immunity to the disease. If it is common from where you are then it wouldn't be too harmful. However, Native Americans getting new European diseases harmed them because this was new and they had no immunity. This made these diseases deadly to them.
Answer: The Manhattan Project was the code name for the American-led effort to develop a functional atomic weapon during World War II.
Explanation: The Manhattan Project was the American program for researching and developing the first atomic bombs. The weapons produced were based solely upon the principles of nuclear fission of uranium 235 and plutonium 239, chain reactions liberating immense amounts of destructive heat energy.
<span>I think all the choices are correct. Because when you say history it talks about the lifestyle of the people including clothing, farming, conflicts to other countries, etc. It's where we find out about the lives of the people whether they are ordinary or famous. History educates us, it tells us about how they live their lives in the past.</span>