The role that the silk road had on other civilizations is that since the silk road was a major trading point many people from many different civilizations would go there to trade their goods, especially the Chinese. The Chinese had something nowhere else did they had silk and spices and people would pay very high for those two goods.
When you say "diversity" I think of many things. So I have many answers:
1. People. Different people farming, means different plants and animals
2. Planting Crops. Planting different crops can prevent soil erosion and or soil exhaustion.
3. On the market. Different crops and meats on the market provides consumers with different products and nutrients they may need.
Idk if this helps, there wasn't much detail. Hope it helps! ;)
Answer: The forces sent by Cicones to stop the plundering of Odysseus and his men were skilled and powerful.
Explanation: