The correct answers are B) Flooding of the Tigris and Euphrates Rivers brought good soil and C) Famers developed technology for irrigation.
The characteristics that allowed southern Mesopotamia to become the cradle of civilization were the following: "Flooding of the Tigris and Euphrates Rivers brought good soil and farmers developed technology for irrigation."
Sumeria is the oldest civilization known to man. They settled between the Tigris and Euphrates Rivers, in the Middle East region of what today is Iraq. They prospered when they developed agriculture techniques that allowed them to grow crops with the proper irrigation techniques, using the flooding of the rivers. They established important city-states such as Kish, Ur, Lagash, and Uruk.
