What was one result of innovations in transportation technology during the 1920s?

a) Aircraft carriers replaced battleships as a superior naval weapon
b) Completion of the Interstate Highway System allowed American drivers easy access to every state
c) Invention of the Diesel engine led to semi-trucks capable of carrying many goods
d) Improvements in airplane technology birthed the commercial passenger airline industry
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Based on the information on the left, what can be inferred about women’s earning power in the developed world?

“[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.

West africans received salt from who?