GENERAL KNOWLEDGE

Detailed explanation-1: -We’ve also noticed that most of these first civilizations tend to have one thing in common: access to fresh water and fertile soil. It makes sense: you need water and food to build a large, non-mobile society, and so we call these the Early River Valley Civilizations.

Detailed explanation-2: -The first civilizations appeared in major river valleys, where floodplains contained rich soil and the rivers provided irrigation for crops and a means of transportation.

Detailed explanation-3: -The first civilizations formed on the banks of rivers. The most notable examples are the Ancient Egyptians, who were based on the Nile, the Mesopotamians in the Fertile Crescent on the Tigris/Euphrates rivers, the Ancient Chinese on the Yellow River, and the Ancient India on the Indus.