My little brother graduated from high school last week.
Well, actually, he didn’t graduate from high school, he just had his graduation ceremony. Because graduation ceremonies happen before final exams are graded (or even during the school year, with classes still to come), students are put through a ceremony and given a fake diploma as they cross the stage to shake hands with their principal. The real diploma comes later, unceremoniously, in the mail. Unless they failed, of course, at which point the ceremony becomes meaningless.
Anyway, after the ceremony, my brother began his summer vacation with his grandmother off-island, and since it was late and I was in the West Island, I decided to stay the night, sleeping in his room.
I noticed above his bed was a poster of the planets (including Pluto, though with a note about its current status) by a company called Eurographics. Each planet on the poster included scientific details about it, such as how many moons it has, what its gravity is and what its average temperature is.
I looked at the one for “Terra” (names are in Latin, while other information uses pictograms so it can be understood in different languages). Something there just didn’t seem right.
Can you point it out?
UPDATE: You folks are fast, and you’re all right. Apparently the fine folks behind this poster got oxygen (O2) confused with carbon dioxide (CO2). Carbon dioxide represents about 0.04% of Earth’s atmosphere, and would be lethal at 20%, particularly if there’s no oxygen to breathe.