Which outcome resulted from using 'fire-arrows' during sieges?

💡 Explanation

Localized fires resulted because prolonged exposure to burning projectiles weakened defensive structures, via thermal decomposition of wooden fortifications like gates. The mechanism is pyrolysis; therefore, structural collapse was likelier, rather than other effects.

• Which risk increased dramatically in 3rd millennium BCE Mesopotamian settlement canals that used flow constrictors?
• Which outcome occurs when constructing timber-framed buildings without proper bracing connections?
• Increased crucible silicon dioxide causes which impediment within early steel production?
• Which mechanism causes the apparent retrograde motion of planets when observed using a medieval Islamic astrolabe?
• Which mechanical outcome accelerated the decline of Roman aqueducts after the 5th century AD?
• Which consequence results when green wood warps within a carvel-built ship hull?