Apparently, atheists and agnostics performed very well in a survey of religious knowledge (on a par with Jews and Mormons and better than Protestants and Catholics) on questions about the core teachings, history and leading figures of major world religions. More about that here. But it wasn’t the survey I was interested in in particular rather their nice chalkboard graphic, which I’ve now adapted and sloganised.
The idea for the benzene smiley is from Tak as featured on the Reactive Reports chemistry blog.