The use of what metal revolutionized agriculture?

• A. Iron
• B. Bronze
• C. Copper
• D. Aluminum

Answer: (A)

The use of durable iron tools transformed farming by greatly increasing the efficiency and scale of tillage and planting. Iron tools could be hardened, sharpened, and repaired, making plows, hoes, and sickles far more effective and long-lasting than earlier bronze or copper tools. This allowed farmers to till deeper and more stubborn soils, cover larger areas with less effort, and sustain higher yields, which supported population growth and settlement expansion. Bronze and copper tools were useful earlier, but they wore out sooner and were less capable for heavy-duty work, and aluminum did not play a role in ancient agriculture.