In a paragraph or two, compare and contrast trade in early empires with trade today. can someone me?

Which would be good historical evidence when studying manifest destiny?

Explain how zollverein, a tariff agreement, to unite the german states.

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.