Which of the following is a critical rule for determining whether something is a public good?

When the total benefits to society are greater for the society than for the individuals using it.

For example is using environmental friendly cars. The cost of the cars would be far more expensive than the ordinary cars, which is not very good for the individuals using it. But it greatly reduced the pollution in the environment, which bring a great benefit for the society

17.73 . . . .. .

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.