Mexico City, the capital of Mexico, is built on a lakebed and is prone to sinking. The city has been sinking for centuries due to a combination of natural and human factors. The natural factor that contributes to Mexico City's sinking is the fact that the city is built on a lakebed, which is composed of soft, porous soil that is prone to settling. In addition, the city's location in an active seismic zone means that earthquakes can also cause the ground to sink or shift. The main human factor that contributed to Mexico City's sinking is the excessive extraction of groundwater from beneath the city. Mexico City is located in a dry region, and the city's growing population has led to the increased extraction of groundwater to meet the demand for drinking water and irrigation. This has caused the ground to sink, as the water that is removed is no longer there to support the weight of the city. Mexico City's sinking has led to a number of problems, including damage to buildings, infrastructure, and utilities. The city has implemented various measures to try to address the problem, including the construction of dams and the use of treated sewage water for irrigation. However, the problem of sinking continues to be a significant challenge for the city.