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Which limit was primarily overcome due to terrace construction in ancient mountainous rice farming?

A)Maintaining sufficient soil hydration
B)Optimizing heat retention at night
C)Reducing wind-induced grain dispersal
D)Avoiding pest infestation by insects

💡 Explanation

Terrace construction reduced soil erosion, improving water RETENTION. The soil water balance in the terraces is primarily improved through the mechanism of SHEET FLOW: spread water infiltrates more completely into the earth and root systems because runoff is slowed; therefore, this favors soil hydration, rather than other microclimate modifications.

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