THE DECEMBER ECO-QUIZ WAS:
"Sites of Art that sound like music, 14 of these in worldwide list. What are we talking about?"

We were not talking about the Yahoo list of "Karaoke sites" as someone humorously suggested... but rather about the 14 Rock Art Sites on the Unesco World Heritage List ---> http://www.unesco.org/whc/sites/rockart.htm

THE JANUARY ECO-QUIZ IS:
" We sometimes refer to the meeting point of a river and the sea as a "Delta", why is that and what is the origin of the word Delta?"