Final answer:
The world's first farmers lived in four regions: the Fertile Crescent, Yangtze River Valley, Indus River Valley, and Nile River Valley.
Step-by-step explanation:
The world's first farmers lived in four regions: the Fertile Crescent, which includes modern-day Iraq and Syria; the Yangtze River Valley in China; the Indus River Valley in present-day India and Pakistan; and the Nile River Valley in Egypt.
Learn more about the regions where the world's first farmers lived