Final answer:
Farmers in the fertile crescent no longer needed to rely solely on seasonal floods or rainfall for irrigation after developing techniques to transfer water.
Step-by-step explanation:
After farmers in the fertile crescent developed techniques to transfer water, people no longer needed to rely solely on seasonal floods or rainfall for irrigation. They were able to control water flow and provide consistent irrigation to their crops through the use of dams, canals, and irrigation systems. This allowed farmers to cultivate crops year-round, increase their agricultural productivity, and store excess crops for future use. As a result, people no longer needed to depend on the unpredictability of nature for their food supply.