The river valleys in Mesopotamia provided the following for people in these ancient civilizations:
- Transportation: Rivers served as natural highways for the movement of goods and people.
- Trade: The rivers facilitated trade routes, allowing for the exchange of goods and cultural ideas with other regions.
- Food: The fertile land around the river valleys enabled agriculture, providing a stable food supply.
- Water: Rivers provided a crucial source of fresh water for drinking, irrigation, and other vital needs.
Thus, all the options listed—transportation, trade, food, and water—are correct.