Final answer:
Approximately 80% of international goods are traded via waterways, reflecting the major role of maritime transport in global trade.
Step-by-step explanation:
The question is about the percentage of international goods that are traded via waterways. The precise answer is not directly provided in the reference information, but considering general knowledge and industry estimates, it is widely known that a significant portion of international trade is conducted through maritime transport.
The correct answer, which aligns with common understanding, is that approximately 80% of international goods are traded by waterways. While there can be variability in this percentage due to advances in transportation and changes in trade patterns, 80% serves as a strong estimate.