1. What is the capital city of Argentina?

2. Which island country lies southeast of India?

3. What mountain range separates Europe and Asia?

4. Why does NASA use the Atacama Desert for testing Mars rovers?

5. What is the term for the large, shifting sand dunes common in parts of the Sahara?

6. What significant paleontological discovery was first made in the Gobi Desert in the 1920s?

7. Which of the following makes the Sargasso Sea unique compared to all other seas?

8. What is the primary criteria used by geographers to classify Antarctica as a desert?

9. Which peak is the highest point in the entire Rocky Mountain range?

10. The Ganges River forms the world's largest delta before entering the Bay of Bengal. What is it called?

11. Which famous meteorite impact crater is located in the Great Sandy Desert?

12. Which iconic plant species is used by geographers to define the boundaries of the Mojave Desert?

13. The Patagonian Desert is primarily a result of the 'rain shadow' effect caused by which mountain range?

14. What unique human characteristic distinguishes the Thar Desert from other major world deserts?

15. What is the highest peak in the Andes and the Western Hemisphere?

16. The Mekong Delta, a major rice-producing region, is located in which country?

17. The Saint Lawrence River flows from which of the Great Lakes?

18. The Red Sea lies within which major geological feature?

19. The Volga River empties into which landlocked body of water?

20. What is the name of the world's largest continuous sand desert located within the Arabian Desert?