Answer:
The floodplains provided fertile soil for growing crops.
Step-by-step explanation:
The Fertile Crescent is a region in the Middle East, south of the mountains of Turkey and Iran. It mainly covers the fertile regions of Iraq, Syria, Lebanon, Israel and Jordan, as well as parts of south-eastern Turkey and south-western Iran.
The Fertile Crescent is named after its crescent-like shape and good cultivation conditions, which led to the development of agriculture in the region between 11,000 and 8,000 years BC. Very soon after, irrigation also began, which is a prerequisite for productive agriculture in much of the area. The area is home to most of today’s most important crops and livestock.