The question is part of a 10 question test developed by Spain based biofuel consulting group Alkol as a general tool to check on the state of the industry. The test, which is free and available at http://www.globalbiobusiness.com/nav.asp?l=37 covers all aspects of biofuels, such as feedstocks, carbon credits, generations, algae, cellulosic, etc, and is available in 3 languages (english, spanish, portuguese), in order to cover the major biofuel markets (USA, Brazil, and Europe). The questionnaire also asks for name, years in industry, company focus, role in company, and email, but in order to keep privacy none of those are actually required.
And the more people that take the test, the more interesting things become. Like in the question on GHG gases being responsible for SMOG, Global warming, Acid Rain, or All of the above, in which the vast majority chose "All of the above". That seems to show there is a general confusion between global warming and contamination, since GHG gases are only responsible for global warming, which has nothing to do with contamination.
Also, it is rather troublesome for the industry the fact that the general grade was just 5,3. In fact, the company is thinking about using it as an assesment tool to job candidates and people who are considering taking one of the courses it offers, such as 2nd generation ethanol.
Still, to its creator, Al Costa, founder of Spain based biofuels consulting group Alkol, "It is all in good fun, and in no way meant to be scientific or anything like that. We just hope it sheds some light on the state of the industry and in doing so it becomes useful somehow."