Water, if you dont feel the effects why would you care about the cause
No because all civilizations in the past had unlimited growth potential because there wasnt a lack of resources like there is now. Post ww2 is an example of a society post population collapse. They rebounced quickly plus there was cheap housing and strong wages relative to cost of living.
You mean like N en T or E en M in Dutch vwo or what do you even mean by major. Plus its probably more similar to all A levels in there as opposed to having the choice between a b or c levels.
Source? Couldnt find anything that agreed