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← HistoryWhich process most severely reduces Chinampa maize yields during prolonged pre-Hispanic Era droughts?
A)Salinization of the soil✓
B)Algal bloom in waterways
C)Increased insect infestation
D)Lowered atmospheric nitrogen fixation
💡 Explanation
Increased evaporation during drought causes capillary action, drawing salts to the soil surface; this process is called salinization. Salinization inhibits maize growth because the increased salt concentration creates osmotic stress, therefore reducing yields rather than biotic stressors having the greater impact.
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