Final answer:
Trade in Pompeii was diverse, involving various goods, including Egyptian artifacts, while Herculaneum is noted for its luxurious residential character rather than commercial activity.
Step-by-step explanation:
The difference in Pompeii's trading and that of Herculaneum is not detailed in the available texts, but we can infer some differences based on their geographical positions and archaeological findings. Pompeii was a bustling commercial hub with many shops and markets, engaging in trade with various parts of the Roman Empire. The discovery of goods and art with Egyptian themes suggests a diverse trading network, including cultural and religious artifacts from Egypt and possibly beyond. In contrast, Herculaneum, which was also affected by the eruption, has shown signs of being a wealthier residential town with luxurious villas and less commercial activity. The nature of Herculaneum's preservation, through a pyroclastic flow, has provided insights into the domestic life there, including organic materials that were petrified. Pompeii's exceptional state of preservation under ash layers provides a different kind of insight, mainly into the urban lifestyle and the commercial aspects of a Roman city.