Why would a civilization be built along a water system

Question

Many smaller animals were hunted along the melendiz river

Answer 1

After air to breathe, water is the most basic human need. Water is used in cooking, cleaning, hygiene, and sanitation. Water also provides transportation for goods and services into and out of a geographic region. Flowing water has been used for centuries as a source of power: originally mechanical energy to drive mills and more recently to create hydroelectric power.