Final answer:
The Tigris and Euphrates Rivers along with the Zagros Mountains were vital geographic features for settlement and civilization growth in the Fertile Crescent.
Explanation:
The Tigris and Euphrates Rivers along with the Zagros Mountains were the two main geographic features that allowed people to settle and grow a civilization in the Fertile Crescent area around 3000 BCE. The rivers provided fertile soils and freshwater for agriculture, while the mountains offered natural resources and protection.
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