Which outcome occurred if Roman road builders laid paving stones directly on unstable clay soil?

💡 Explanation

When Roman road builders built directly on clay, differential settling occurs because the clay consolidates under load unevenly, causing ruts and subsidence in the road surface. Therefore rutting results, rather than smoothness, drainage benefits or decreased weeds, which clay soil would not induce without proper construction techniques.

• Which environmental consequence results when pre-Columbian terrace farming experiences deforestation in mountain regions?
• Which outcome occurs in a Boulton-Watt steam engine when the condenser cooling water supply is interrupted?
• Which structural problem developed historically in timber ship construction due to alternating wet and dry conditions?
• Which outcome arose when Mesopotamian bronzesmiths quenched rapidly cast copper-arsenic alloys in water?
• Which risk increases when operating a Newcomen engine without sufficient boiler water?
• Which structural compromise arose when incrementally increasing ziggurat height beyond clay tensile limit?