2. Archipelago Galapagos islands
Source: Based on the public domain NASA satellite photo 
Archipelago
Galapagos islands

4. Ubari sand sea, Libya (Sahara Desert)
Dune
Ubari sand sea, Libya (Sahara Desert)

6. Washington, United States
Volcano
Mt. Saint Helens
Washington, United States

8. Bay Olu Deniz Bay, Turkey

10. Peninsula Florida, United States

12.
Isthmus
Greece

14. Grand Canyon, United States
bighugelabs.com/flickr/onblack.php?id=
Canyon
Grand Canyon, United States

16. Oasis Huacachina Oasis, Peru
Oasis
Huacachina Oasis, Peru

18. Glacier National Park, United States

20. Plateau Utah, United States

22. Basin
Tarim Basin
Xinjiang Uyghur, China

24. Thulhagiri Island, Republic of Maldives
Island
Thulhagiri Island, Republic of Maldives

26. Desert
Arizona, United States

28.
Ocean
Indian Ocean

30. Gulf
Persian Gulf

31. Way to Go!
To play again go to the first slide and click on the “Slide show from current slide” icon.