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← HistoryWhich outcome resulted from the deliberate flooding of chinampas during the dry season?
A)Soil salinity increases from evaporation
B)Nutrient replenishment from sediment deposition✓
C)Erosion of raised beds collapses structures
D)Decreased biodiversity from aquatic competition
💡 Explanation
When chinampas were flooded, the mechanism of nutrient replenishment occurs because sediment from canals deposits onto the raised beds during drawdown, thus revitalizing the soil. Therefore, increased fertility results, rather than salinity, erosion or decreased biodiversity, which require distinct environmental factors.
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