Answer:
The first civilizations were established in rivers due to:
Explanation:
The earliest civilizations are those in which a complex society developed, including the Egyptian, Mesopotamian, Hindu, and Chinese civilizations. These civilizations have the common characteristic of developing on the banks of a river.
This is because the river banks offered various advantages for human development, for example, rapid access to drinking water, and fertile land for crops.
Also, rivers are food sources through fishing and hunting animals that drink the river water.
I hope this information can help you.