Which environmental risk was most likely reduced by chinampa construction in the Valley of Mexico?

💡 Explanation

Chinampas, or 'floating gardens,' reduced soil erosion because their raised beds were isolated from seasonal floodwaters by canals, which act as a barrier. Therefore, reduced soil erosion resulted, rather than insect outbreaks, nutrient depletion, or salt accumulation, which stem from different agricultural or environmental stressors.

• Which outcome arises in early steam engines when the piston extensively cools the cylinder during expansion?
• Which vulnerability increased susceptibility of the 18th-century wooden warships to capsize during heavy broadsides?
• Which outcome was often observed when siege engines using torsion springs launched projectiles in ancient warfare?
• Which benefit did the ancient Chinampa raised-field cultivation technique provide relative to traditional floodplain farming?
• Which constraint impacted crop selection within Aztec chinampa agriculture around Lake Texcoco?
• Which threat increased when 18th-century ships stored excess black powder below the waterline during naval battles?