Final answer:
Spengler posits that the creation of a Civilization from a Culture leads to the destruction of that original culture due to increased trade and exchange, which results in cultural homogenization even as it advances society.
Step-by-step explanation:
The argument that Spengler presents regarding what happens when a Culture creates a Civilization is that this transition, marked by increased exchange and connectivity, ultimately leads to the undermining and destruction of the original culture. As societies become different parts of a global network of trade and exchange, their unique cultural aspects are often lost. Civilization, while providing numerous benefits such as improved living standards and access to a broader range of goods, services, and knowledge, often comes at the cost of cultural diversity.
Take the case of the Muslim civilization in al-Andalus, for example, which brought advancements and introduced changes that ultimately replaced the existing Visigoth culture. Likewise, the European expansion had a significant, often destructive, impact on cultures around the world. Yet, it also led to advancement and the eventual rise of the globalized world we know today, where the spread of civilization coincides with cultural homogenization.