In agriculture, what was one of the advantages of terrace farming used by the Incas?

Terrace farming, utilized by the Incas, offered the unique advantage of creating different temperature zones. This agricultural technique allowed the Incas to transform steep, mountainous terrain into flat, arable land by constructing stepped platforms. The varying elevation of these terraces enabled the growth of different crops at different altitudes, where temperature and climate conditions could vary significantly.

This practice was particularly beneficial in the Andes, where climate and altitude have a direct impact on the types of crops that can be successfully cultivated. By creating distinct microclimates, the Incas could grow a diverse array of crops including potatoes, maize, and quinoa at optimal increasing altitudes, maximizing agricultural output. This adaptation to the environment was crucial for sustaining the Inca population and demonstrates their advanced understanding of agriculture in relation to their natural surroundings.

In contrast, the other options don't accurately reflect the main benefits of terrace farming as practiced by the Incas. While increased yield of single crops and greater seed variety may be beneficial in agricultural contexts, they are not the primary advantages attributed to terrace farming. Additionally, reduced need for fertilizers is not a principle connected to terrace farming; rather, it would depend on other agricultural practices and the soil management used alongside the terraces.