Answer:
tensions between northern and southern states over slavery, states' rights and westward expansion
Answer:
Stalin failed to keep some of his promises. Churchill and other allied leaders were afraid Stalin /Russians would not leave cities they liberated from the Nazis. Truman took over from Roosevelt and was tougher with Stalin. The West did not share information on nuclear/atomic developments, another sign of distrust. They felt he was another dictator, when they just fought dictators. The Communist ideology saw Capitalism as an enemy to be conquered rather than a different ideology to co-exist with.
Explanation:
The best way to measure public opinion is through opinion polls - B
With opinion polls you get an idea what is the general idea about a certain topic from the public, as you usually get a high enough sample to deduce the relevant information.
To answer your second question I would say it is either B or C as being a sole proprietor usually makes you subjec to being a small business or you're forced to use factors of production less efficiently.
Hoover Dam<span>, once known as Boulder Dam, is a concrete arch-gravity dam </span>in<span> the Black Canyon ....</span>Construction<span> of a rail line joining Las Vegas and the dam site began </span>in<span> September </span>1930<span>. .... Falling objects were the most common cause of death on the dam site; the highscalers' work thus </span>helped<span>ensure</span><span> worker safety</span>