The rise of early river valley civilizations was caused by which aspect of the Neolithic Revolution? A. The ability to move from place to place B. The rise of more warlike cultures C. The equal treatment of all people D. The formation of permanent settlements

**D. The formation of permanent settlements**<br /><br />The Neolithic Revolution marked the transition from nomadic lifestyles to settled farming communities. This allowed people to establish permanent settlements, often near rivers, which provided water for agriculture, transportation, and trade. These settlements eventually grew into early river valley civilizations.