Ancient history

What did the Incas make on steep slopes so that they can farm?

The Incas made terraces on steep slopes so that they could farm. These terraces were built by stacking rocks and stones to create a flat area that could be used for planting crops. The terraces were often irrigated, and the Incas used a variety of techniques to prevent soil erosion. The Incas also built aqueducts and canals to bring water from distant sources to their fields.