1. river-valley civilizations developed in sumer, egypt, china, and the indus river valley. after following the procedures in the planning a compare and contrast essay worksheet, write an essay comparing and contrasting these civilizations. type your essay here

Well those civilazations river valley all for farming in sumer they called did irrigation. they are the same too cause it helped for trade transportation most for farming it helped for bathing and food

The river valley civilizations used the rivers to travel as well as the Indus River valley. But the difference is that once was blocked to the world and one traded

This is the information I could find. Hope I helped and good luck!