Which advanced agricultural technique did the Incas use to farm on the slopes of the Andes mountains?

Fact

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To maximize agricultural space in the steep Andes mountains, the Incas developed an ingenious system of agricultural terraces. These structures not only helped control erosion and manage water efficiently but also allowed cultivation in areas that would otherwise be unsuitable for agriculture. By creating microclimates, the Inca terraces could produce a variety of crops at different altitudes, contributing to the food diversity of the Inca empire. This technique of terrace farming is a testament to Inca ingenuity in facing the challenges of their environment.