Which invention significantly improved farming?

• A. Almanac
• B. Wheel
• C. Sails
• D. Plow

Answer: (D)

Turning and preparing soil efficiently is essential for good crop growth. The plow made this possible on a large scale: it breaks up hard ground, buries weeds and residue, and brings nutrients up to the surface, all while allowing farmers to work much larger plots with animal or later mechanical power. That leap in soil management leads directly to bigger harvests and the rise of organized agriculture. An almanac helps with planning and timing but doesn’t change how soil is prepared; sails aid transport and trade, and the wheel improves movement, yet neither directly improves farming soil more than the plow does.