Every year, Yahoo! gets into the spirit of Earth Day and educates our community about all things green. This year, our focus is on giving you fun new reasons to search on Yahoo! for green information. Yahoo! Search is featuring a bunch of green trivia questions like "What's the difference between brown eggs and white eggs?" or "Which city has the highest gas prices?. If you need a cheat sheet, you can find the answers to these puzzles and more by searching on Yahoo!.