Answer:
The first civilizations appeared in major river valleys, where floodplains contained rich soil and the rivers provided irrigation for crops and a means of transportation.
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Bc it tells what the majority of the people want someone votes for who they think would be better and then they count the votes and whoever has the most wins.
Because there was an HIV/AIDS outbreak, and due to being a Republican administration, they had absolutely no idea how viruses or the human body worked. The CDC did.
B, the invention of techniques for farming and animal herding
