Final answer:
The Aztecs brought water to Tenochtitlan from the fresh water springs of Teotihuacan through an aqueduct, ensuring access to clean and fresh water for their population.
Step-by-step explanation:
They constructed a d`ike across Lake Texcoco to separate the fresh water around their city from `the brackish water of the main lake. The water was then transported via the aqueduct from the springs in the hills overlooking the lake into the city.
This system ensured that the Aztecs had access to clean and fresh water for their population. The Aztecs brought water to Tenochtitlan from the fresh water springs of Teotihuacan through an aqueduct.