What simple machines did early humans use for cultivating crops?

Early humans used simple machines such as the lever, wheel and axle, and inclined plane for cultivating crops. The lever enabled them to lift heavy objects like stones or soil, while the wheel and axle facilitated transportation of tools and harvested crops. Inclined planes were likely utilized in the form of ramps to move materials or to create furrows for planting seeds. These basic machines significantly improved agricultural efficiency and productivity.