Question

4 which practice is closely associated with most ancient river valley civilizations?
recording events in cave paintings
spreading monotheistic religious customs
developing democratic traditions
the use of irrigation systems

Explanation:

Ancient river valley civilizations (like Mesopotamia, Egypt, Indus Valley) relied heavily on irrigation systems to manage water for agriculture, which was crucial for their survival and growth. Recording events in cave paintings is more associated with pre - river - valley hunter - gatherer or early nomadic societies. Monotheistic religions spread later, and democratic traditions were not a feature of most ancient river valley civilizations (they were often ruled by monarchs or theocracies). So the use of irrigation systems is most closely associated.

Answer:

The use of irrigation systems