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← HistoryWhich consequence arises when heavy Roman supply wagons repeatedly traversed roads on unstable ground?
A)Increased road surface hydrophobicity
B)Localized sinkholes and subsidence occurs✓
C)Improved road drainage efficiency
D)Reduced rate of material weathering
💡 Explanation
Excessive loading on saturated soil prompts soil compaction because the mechanism of effective stress reduction allows pore water pressure to displace soil grains, and therefore sinkholes form, rather than improved drainage which would require filtration.
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