Which risk increased significantly when Roman concrete masonry techniques declined?

💡 Explanation

Without the pozzolanic reaction forming strong cementitious bonds, aqueducts experienced greater instability, therefore structural collapse became more frequent, rather than the alternatives, because the composition dictated longevity via hydraulic cement hardening.

• Which consequence arises on pre-Columbian agricultural terraces when rainfall intensity surpasses the infiltration capacity?
• Which risk increased for pre-Columbian societies during periods of volcanic ashfall interrupting chinampa agriculture?
• Which risk increases considerably when inaccuracies accumulate during the manufacture of astrolabe components?
• Which mechanism increased compressive stress at the base of ziggurats, predisposing it to foundation settling?
• Which outcome routinely affected Viking longship voyages when encountering North Atlantic storms?
• Which navigational error increases when an astrolabe's alidade has excessive bearing friction?