Why do developing nations tend to be more heavily affected by pandemics than developed nations?
a. developing nations are unable to resist the social problems of plague.
b. developing nations lack the resources to control the spread of disease.
c. developed nations place the burden of prevention on the developing nations.
d. developed nations are able to use armies to block borders and prevent spreading.

Describe two observations that galileo was the first to make with his telescope.

“[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.

How did the environments in north america affect the development of america indian cultures in the period just before europeans arrived