Here: http://www.csmonitor.com/Science/201...h-s-atmosphere

I got 31 out of 50. Unfortunately, my science background is fairly weak. A lot of what I do know I've learned in recent years after taking an active interest as a layperson. But my fundamentals aren't very good. Got me some more learnin' to do.

This takes a bit of time, btw. Probably around 20 minutes is what it took me.