Final answer:
Mexico City faces the challenge of sinking land due to excessive groundwater pumping, affecting the city's infrastructure and sustainability of water resources.
Explanation:
Sinking land is one of Mexico City's greatest technological challenges due to excessive pumping of groundwater, causing land subsidence. This issue is exacerbated by the city being built on an old lake bed, leading to damage of surface structures. The depletion of groundwater is a critical concern impacting the sustainability of water resources.
Learn more about Mexico City's technological challenge with sinking land here:
https://brainly.com/question/43744160
