| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | terrace farming | Inca | Innovative and essential for agriculture in mountainous regions | 1 |
| 2 | terrace farming | Incan civilization | Extensively used to grow crops on steep Andean slopes | 1 |
| 3 | terraced farming | Inca culture | Utilized to cultivate crops on steep mountainous terrain | 1 |