Which risk increased during ziggurat construction, when masons layered sun-baked bricks without proper mortar bonding?

💡 Explanation

When sun-baked bricks were layered without proper mortar, differential settling occurs because the uneven loading leads to varying compaction rates within the unbonded layers, causing cracks. Therefore differential settling results, rather than brittle fracture, creep deformation, or shear failure, which require cohesive material properties.

• Which structural vulnerability arose when Roman fortifications transitioned from stone walls to concrete infill faced with brick?
• Which consequence increased maintenance demand for Roman roads constructed in regions experiencing freeze-thaw cycles?
• Which mechanism caused widespread bronze tool failure in early Mesopotamian agricultural societies growing crops like wheat?
• Which structural weakness significantly increased the risk of landslides along ancient Roman roads built on steeply sloped terrain?
• Which effect increased the firing range of early gunpowder cannons employing windage gap between the ball and barrel?
• During long 18th-century sea voyages, which systematic error affected sextant altitude measurements?