Answer:
The construction camps were beset with malaria, cholera, and starvation. The ties and some bridges were made of immature green wood that buckled and created maintenance headaches all along the 5,772-mile route – about a fourth of the circumference of the earth – that would not be tied together until 1901.Originally, in the east, the Russians secured Chinese permission to build a line directly across Manchuria (the Chinese Eastern Railway) from the Transbaikal region to Vladivostok; this trans-Manchurian line was completed in 1901. ...It allowed people to reach the remote regions and exploit Siberia's natural resources.
Explanation:
What are you confused about on the question?
Domestic slave trade was common because it was believed to increase productivity.
It is the United States "Senate" that limits the president's ability to nominate federal judges, since one of the jobs of the Senate is to "confirm or deny" such appointments.
in my judgement it is D.. sounds the most correct out of all :)
