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Which 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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