Expanded trade, regional empires, and increased global trade are all effects of which of "<span>b. the transition from river valley civilizations to classical civilization," since classical civilizations engaged in more far-reaching trade and cultural diffusion. </span>
Answer:
1.mercator
2.all of the continents and countries are clearly shown as well as the oceans
3.it shows that the europeans only mingled with the African Americans because of forced trade. other than trade they viewed Africa through a distorted veil of racism.
a central data hub for a "smart"city
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