... said:
> Thanks so much for the reply and for ... />
> Thankfully the games are prettymuch mastered- I got the section ... , you can't put too much stock in the scores of ...
I think you've prettymuch nailed the analysis of the question. When I went through it I also wasn't entirely clear on those three gases being the only components of the atmosphere, but as soon as the answer popped up, I realized that must be the case.