Answer:
All of these early civilizations settled near the river valleys as they provided fertile soil for them.
Explanation:
As we can see from the map Mesopotamia developed in the river valleys of Tigris and Euphrates, while Egypt was settled in the river valley of Nile.
China developed in the river valley of Huang He river, while India developed in the river valley of Indus river.
Of course, the fertile soil allowed them to develop agriculture and provide them food.
