Answer:
Second question answer: There are some advantages of a command economy, and these include: Low unemployment rates due to the regulation of jobs by the government. Everyone has access to health care services and necessary services needed to live, and usually the fee is either low or free.
(I'm not sure about the 1st question)
The Atomic bomb was correctly seen as such a jump forward in modern weaponry that it would end the war with the holder of the weapon being the ultimate victory.
This proved to be true as the dominant powers after the War were the two nations that had the weapons (US and Soviet Union).
The Native Americans had to move because they took over land.
Answer:
B. Basic systems needed to support a society, such as roads and a water supply
First blank Roads and not sure about the second sorry.