Weegy: Today, one of Mexico City s greatest technological challenges is: sinking land. User: Mexico City is an example of how humans alter their environment because it was __________. A. one of the world’s largest cities B. built on drained and filled lake beds C. built after conquest by the Spanish D. once the capital of the Aztec empire Weegy: Mexico City is an example of how humans alter their environment because it was: Built on drained and filled lake beds. (More)

Weegy: Chinampas are best described as ISLAND USE FOR AGRICULTURE. User: Which of the following is not a common purpose for constructing reservoirs? A. to regulate water flow along rivers B. to create recreational areas C. to store water for times of drought D. to increase seasonal river flooding (More)