I know the main uses of the word environment.

For example, I work in a nice-friendly environment. Or I try to do my best to protect the environment.

But, when I think about The political and cultural environment, I do not understand why it is not THE political and cultural environmentS (because in my opinion there are two types environments, political and cultural)

Also, I was wondering when to use ENVIRONMENTS (PLURAL).

For instance, McDonalds offer very safe environments for their employees (because they are in different cities, and even different countries, therefore I would imagine it should be in plural).

On the other hand, how about the political and economic environmentS of developing countries ( because it is not just 1 country)

Thanks, I appreciate your help.