Which was a difficult the builders of the transcontinental railroad had to overcome?

How did the results of wwi benefit the u.s.?

When there are advances in technology, such as the personal computer, how might business productivity change? a) productivity is separate from technological advances so there is no impact. the new technology can replace outdated, less efficient, machinery. o) the businesses' products will no longer be demanded. d) manufactured items will be made elsewhere.

General who became emperor of france