Which outcome occurs as intensive maize cultivation exhausts soil nutrients within a chinampa system?

💡 Explanation

When soil nutrients are exhausted, nutrient depletion limits maize yields due to reduced nutrient availability, creating a nutrient deficiency for the crops. Therefore declining yields necessitate fallow periods, rather than algal blooms, salinity, or methane, which are all contingent on organic matter or salts accumulating in the water or soil.

• Which adjustment compensates for variation in observer latitude when using a historical astrolabe?
• Which navigational outcome improved due to the 18th-century adoption of the Harrison chronometer on long sea voyages?
• Which accuracy constraint limited astronomical observations made using quadrant instruments in medieval Islamic observatories?
• During Mesopotamian bronze casting, which consequence occurred from incomplete removal of slag inclusions?
• Which risk increases with increasing tin quantities beyond optimal proportions during Bronze-Age copper smelting?
• During early iron production, which outcome arose from incomplete carbon monoxide oxidation in bloomery furnaces?