Get ready to be challenged with some of the most difficult canyon trivia questions you have ever seen! Sure, we all know that a “canyon” is a deep valley cut by running water. But can you answer these other canyon-related questions: What’s the world’s longest and deepest canyon? How many different types of canyons are there? What kind of animal lives in a desert ecosystem? If you’re not sure about any answers, don’t worry – just keep reading this article to learn more about these amazing environments.