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.

Enlightenment thinkers most contributed to the development of whichpolitical idea? a. religious leaders should play the largest role in establishing asociety's laws. b. democratic governments have the responsibility to protect humanrights. c. criminals must be punished harshly if a society is to maintainorder. d. written constitutions place unnecessary restrictions ongovernments' powers.