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← HistoryWhich irrigation effect occurred on Inca agricultural terraces due to daytime solar heating?
A)Decreased water infiltration rates
B)Increased soil moisture uniformity
C)Elevated crop transpiration stress✓
D)Reduced diurnal temperature swings
💡 Explanation
Crop transpiration stress elevates because daytime soil heating increases evaporation, overwhelming plant uptake; this mechanism of soil moisture depletion leads to water stress. Therefore, option C is correct, rather than enhanced moisture uniformity or boosted infiltration, factors worsened under direct sunlight.
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