Which circumstance was most directly responsible for the rapid growth of the railroad industry? a. railroad owners sold stock to investors to finance the construction of railroads b. builders agreed on a universal width for train tracks c. inventors developed air brakes and more efficient train-car connectors d. pullman began manufacturing cars for overnight travel answer the right answers

Considering the benefits and drawbacks of the different types of money as well as the gold standard, do you agree or disagree with the us government’s decision to discontinue the gold standard? justify your response.

“[the city’s engineers excelled in areas] neglected by the greeks, such as the construction of roads and aqueducts, and of sewers that could wash the filth of the city into the tiber. they have built paved roads throughout the country, leveling ridges and filling up hollows, so as to make possible the movements of heavily loaded wagons. . and such is the quantity of water brought in by the aqueducts, that veritable rivers flow through the city and its sewers: almost every house has cisterns, waterpipes, and copious fountains.” —strabo, as quoted in empires ascendant: time frame 400 b. c.–a. d. 200 cisterns are tanks that hold water until it is needed; if a house has a cistern, it is likely to also have a. aqueducts. c. a swimming pool. b. a fish pond. d. sinks and faucets.

Select all that apply. identify two reasons for the fall of the ming dynasty. invasion by the japanese and koreans death of the emperor invasions poor leadership