What natural phenomenon may have contributed to the decline of mayan civilization? devastating earthquakes a series of floods unusually cold winters a long drought

What explains the increase in life expectancy in botswana? a. the increased availability of jobs and an improved economy b. access to antiretroviral drugs, hiv/aids education, and widespread hiv/aids testing c. a series of military takeovers that stabilized the political system and led to education reform and increased literacy rates d. a recent military coup that led to an improved healthcare system select the best answer from the choices provided.

How long have counties been a part of the government structure of the united states?

What mountains did the first transcontinental railroad cross