Answer :
Final answer:
The Maya, Aztec, and Inca shared commonalities such as growing corn as their primary crop, living in mountainous regions, and being united into an empire.
Explanation:
The Maya, Aztec, and Inca civilizations all had commonalities. One of the similarities was that they all grew corn as their primary crop. Corn was a staple food for these civilizations and played a vital role in their diets and economies. Another common feature was that they all lived in mountainous regions. The Maya lived in the lowlands of Central America, the Aztec in the Valley of Mexico, and the Inca in the Andes mountains. Lastly, they all were united into an empire. The Maya, Aztec, and Inca each had a centralized political system with a ruler or emperor who governed over a vast territory.
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