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Which outcome occurred if pre-Columbian drainage canals failed?

A)Increased soil salinity occurs there
B)Diminished erosion due flood control
C)Faster nitrogen runoff reduction occurred
D)Increased aeration of previously compact ground

💡 Explanation

Increased soil salinity occurs, because the evaporative water loss deposits salts via capillary action, leading to salinization rather than aeration. The mechanism of action is capillary transport. Therefore, salinity rises above optimal limits, rather than improves fertile structure.

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