Which ancient civilization is credited with developing the earliest known plow? Egyptians Sumerians Greeks Romans None What was the main agricultural benefit of the three-field crop rotation system introduced in medieval Europe? It reduced soil erosion It prevented crop diseases It increased soil fertility It allowed for year-round farming None Who is known as the "Father of Modern Agriculture" for his work on nitrogen-based fertilizers in the 19th century? Justus von Liebig George Washington Carver Norman Borlaug John Deere None Which 18th-century invention greatly improved the efficiency of planting seeds? Mechanical reaper Cotton gin Seed drill Steel plow None What was the significant impact of the introduction of synthetic fertilizers in the 20th century? Reduced need for crop rotation Elimination of pests Increased crop yields Advancement of organic farming None Time's up
