1. Where is the Tonle Sap located?
2. Through which of these countries does the Nile River not flow?
3. Where would one find Hadhramaut?
4. Where might one find a barchan?
5. What is the highest mountain in Russia?
6. What is Turkey’s highest mountain?
7. The world’s largest lake is:
8. What natural wonder of the world is named after aviator Jimmy Angel?