Fracking is hydraulic fracturing, big in the news in the U.S. as there's something of a gas boom because of fracking.   That's sort of an American current events question, really.  I wouldn't expect people outside the US to know much about it, expect to hear more about it in the coming months and years, though.

13/13, I didn't even have to think on any of these.  All of these (except fracking) are covered more than once at every level of education.  All you have to do is pay attention, sad how many don't.

9/13

Yes, I was answering as I read the text. You are right, I could have probably deduced that, but I wasn't thinking in this terms as I read the question, so I instead looked up the translation.

Marginally related to the topic, but i was greatly disappointed by how none of my coworkers knew that the Philippines used to be an American territory (the question came up over a 76-year-old Filipino-American doctor being reinvestigated, who claimed US citizenship by birth but listed his birthplace as the Philippines, and i had to explain to several people why that might not be a ridiculous error on his part)

I mean, how quickly we forget. The Japanese invasion of the Philippines was a big damn deal to us during WWII.

13 out of 13!

I didn't know there was a game named Are you Smarter than a 5th grader?

7/13...while so incredibly drunk i can barely read, going by drunk math, that makes me the smartest man on earth

I got 11/13 for it to be an english test when is not my main language I believe I did well

13 correct :P

13 out of 13. Me feel smart.

12 out of 13.

I got the atmosphere question wrong.