Final answer:
The decline in trade routes disrupted the availability of tin for bronze manufacturing, leading metalworkers to experiment with iron. The accessibility of iron in various regions without the need for long-distance trade allowed for the development of iron implements that were superior in strength to bronze.
Step-by-step explanation:
The decline of the Bronze Age led to the beginning of the Iron Age. During the Late Bronze Age Collapse, disruptions in trade routes made it difficult for metalworkers to acquire the necessary tin to manufacture bronze. As a result, some innovative smiths began experimenting with iron, which was readily available in various places without the need for long-distance trade. Through forging and other techniques, they were able to create iron implements that were hard and durable, making iron far superior in strength to bronze. Therefore, the absence of tin was a significant factor in the shift to iron during the civilizational collapse.