Page 1 of 2 It's a Wonderful World! How much do you know about this planet of ours? Test your knowledge with our fun quiz... 1. What is the highest mountain in the world?     K2     Everest     Cho Oyu     Kangchenjunga 2. What is the deepest ocean in the world?     Indian Ocean     Atlantic Ocean     Pacific Ocean     Arctic Ocean 3. What is the longest river in the world?     Congo     Nile     Amazon     Yangtze-Kiang 4. What is the largest desert in the world?     Australian     Kalahari     Sahara     Gobi 5. What is the largest lake in the world?     Lake Superior     Lake Victoria     Great Bear     Caspian Sea   < Advanced Quizzes  |  Try Again  |  Quizzes Home  |  Next Quiz >   Facts: The Top 10 of Everything 2003, by Russell Ash