How does the modern era differ from the classical era?

The modern era has seen the rise of powerful imperial states, while the post-classical era was characterized by smaller city-states. The modern era is characterized by global exchange of ideas and goods, while this kind of exchange was mostly regional during the post-classical era. D. Cultures are more isolated and distinct in the modern era, while classical cultures around the world shared many more characteristics. D. Goods are exchanged on a local level during the modern era, whereas global trade was more prominent in the classical era.

Explanation:

the constitution of the united states gave congress the absolute authority over immigration laws

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explanation:

max weber's 3 types of authority. the sociologist and philosopher  max weber  distinguishes  three types of authority—charismatic,  traditional  and legal-rational—each of which corresponds to a brand of  leadership that is operative in contemporary society.