Name the four widely recognized agricultural hearths in world geography.

• A. The Fertile Crescent, Nile River Delta, Indus Valley, Huang He Valley.
• B. The Fertile Crescent, Nile River Valley, Indus Valley, Huang He (Yellow River) Valley.
• C. The Amazon Basin, Nile River Valley, Indus Valley, Huang He Valley.
• D. The Fertile Crescent, Nile River Valley, Andes, Huang He Valley.

Answer: (B)

Farming began in river valleys where fertile soils, predictable water, and opportunities for irrigation supported settled communities. The four widely recognized agricultural hearths are the Fertile Crescent, the Nile River Valley, the Indus Valley, and the Huang He (Yellow River) Valley. This quartet is taught because it reflects early domestication and crop diffusion in major river valley environments, which then spread agricultural practices to other regions. The Nile Delta is part of the Nile system, but the broader river valley is the classic hearth; other regions like the Amazon Basin or the Andes are important in regional histories but are not the standard four for this topic. So the best choice lists the Fertile Crescent, Nile River Valley, Indus Valley, and Huang He Valley.