What would be challenging about doing a direct comparison between the Middle Ages and the Renaissance?

Secretary of state kissinger engaged in to reach a cease-fire between israel and arab nations.

The largest city in brazil, sao paulo, has a population of about 11 million. based on the rank-size rule, what is the population of the second-largest city, rio de janeiro, most likely to be? a. 8 – 10 million b. 5 – 6 million c. about 3 million d. about 1 million

Aside from low birthrates and high death rates, what can cause a country’s population to decline