Which risk increased most after gunpowder's introduction to Song Dynasty siege warfare?

💡 Explanation

The risk of fire increased significantly due to the inherent instability of early gunpowder mixtures; this introduced a *thermal runaway* chain reaction because a single spark within siege engines could lead to immediate, devastating fires, rather than slow burns.

• Which consequence resulted from relying only on celestial navigation during transoceanic voyages with 18th-century ships?
• Which mechanism caused bronze sickle effectiveness to drop, forcing frequent resharpening?
• Which risk increases when a reciprocating steam engine loses its governor during operation?
• Which risk increased significantly with the perfection of uniform-bore cannons by the mid-19th Century?
• Which risk increases when arsenical bronze ingots used for Mesopotamia tools are repeatedly reheated during forging?
• Which navigational outcome resulted when astrolabes incorporated improved geometric projection?