Terrace - A form of farming for the Inca tribe. Leveled surface for different crops and to absorb water , Andes Mountains - The incas adapted to the challenging geography , irrigation - a form of engineering called aqueducts that transported water to different cities, infrastructure - Incas did infrastructure by building roads , engineering - the incas did engineering by building terrace, tribute government - incas worked and it is how they payed the government. them working payed the government ,

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