Answer:
The peoples of Africa had rich and diverse histories and cultures centuries before Europeans arrived. Africans had kingdoms and city-states, each with its own language and culture. ... Art, learning and technology flourished, and Africans were especially skilled with medicine, mathematics, and astronomy.
Explanation:
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Answer:
The crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow.
Explanation:
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Answer:
highest officer of a state after the governor
Explanation:
The US innovation of Afghanistan was a response to the 9/11/01 attacks on the US. So A.