B......... there's not much information to go on
The depression didn't reach the USSR because the USSR did not have a capitalist government. It also didn't have a stock exchange and didn't trade with any capitalist governments. The USSR was also very isolated because of communism.
Since the main economic activities revolve around the NASA's space center because of the quantity of people it attracts and works there, once the facilities are closed you can predict their average household income shall decrease because there will not be as many people around anymore. This has happened in other cases with petroleum companies, many towns have formed around their facilities and once they move the towns have to face a big income decrease.
Not really. There were Jim Crow Laws still in place and rights were not given to African Americans during this time period.