How did trade affect the development of african kingdoms?

it contributed to the creation of an agricultural class.
it led to the decline of city-states.
it let to the rise of tribal communities.
it contributed to the rise of power city-states and later kingdoms.

How does the pyramid of giza include art, science, math, or a need for infrastructure?

When u make a choice the experience from what would have been your second option is called

“[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.