Early River Valley Civilizations

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Geography and the environment played enormous roles in the development of the early River Valley Civilizations. Without any of today’s technology, ancient civilians were completely reliant on their natural resources for food, water, and trade. The Tigris-Euphrates, Yellow, and Nile River Valleys are perfect examples in how earth science impacted these needs.
The Huang He, or Yellow River Valley, was surrounded by mountains, so trade was a difficult, infrequent option. The region received its name from a river of the same name that carried yellow silt through the lands, resulting in extremely fertile soil. The river flooded, wiping out crops and building an irrigation system made farming their prime food source. Having a steady food supply allowed