John Green lists reasons a group is considered a civilization. Which is not one of the reasons?

Surplus production
Cities
Specialization of Labor
Music

Music

The reason that is not listed by John Green as a criterion for considering a group a civilization is "Music."

To determine which of the options is not one of the reasons a group is considered a civilization, we can refer to John Green's list. However, as an AI language model, I do not have access to specific lists or materials created by individuals like John Green. I can, however, give you a general understanding of what is commonly considered when discussing the characteristics of a civilization.

Typically, the following are considered key characteristics or reasons a group is considered a civilization:

1. Surplus production: This refers to having more resources or goods than are immediately needed for basic survival. It often involves advanced agricultural techniques, efficient food production, and storage systems.

2. Cities: A civilization is usually associated with the establishment of cities or urban settlements that serve as centers of trade, governance, and cultural activities. Cities have larger populations and provide a hub for various social, political, and economic interactions.

3. Specialization of Labor: This refers to the diversification of roles and occupations within a society. As civilizations emerge, different individuals start specializing in specific tasks or skills, such as farming, crafts, administration, or religious practices. This specialization enhances productivity and promotes efficiency.

4. Music: While music can be an important cultural aspect of a civilization, it is not typically considered a defining characteristic when discussing the reasons for grouping a society as a civilization.

Based on the options provided, "Music" appears to be the option that is not typically considered as one of the reasons a group is considered a civilization.