Which pair of developments notably enhanced Song military capability and maritime trade?

Which pair of developments notably enhanced Song military capability and maritime trade?

• A. Gunpowder usage and magnetic compass
• B. Paper money and silk weaving
• C. Gunpowder and celestial navigation star charts
• D. Iron casting and horse collars

Answer: (A)

Gunpowder and the magnetic compass together expanded Song military power and long-distance trade. Gunpowder brought new weapons and explosive devices that changed how battles were fought, giving Song forces stronger defense and offensive capabilities. The magnetic compass revolutionized navigation, enabling ships to travel reliably across open seas and reach distant markets, which greatly boosted maritime trade and naval reach. The other options pair technologies that aren’t as directly tied to expanding sea power or commerce: paper money and silk weaving reflect economic development, not military capability or seafaring expansion; gunpowder with celestial navigation star charts highlights navigation aids that were less central to Song sea travel than the compass; and iron casting with horse collars mainly support industry and agriculture rather than seaborne power or trade.

Gunpowder and the magnetic compass together expanded Song military power and long-distance trade. Gunpowder brought new weapons and explosive devices that changed how battles were fought, giving Song forces stronger defense and offensive capabilities. The magnetic compass revolutionized navigation, enabling ships to travel reliably across open seas and reach distant markets, which greatly boosted maritime trade and naval reach. The other options pair technologies that aren’t as directly tied to expanding sea power or commerce: paper money and silk weaving reflect economic development, not military capability or seafaring expansion; gunpowder with celestial navigation star charts highlights navigation aids that were less central to Song sea travel than the compass; and iron casting with horse collars mainly support industry and agriculture rather than seaborne power or trade.