| Age | Location | Desert | % Correct |
|---|---|---|---|
| 7 million years old | North Africa | Sahara | 96%
|
| 10 – 45 million years old | Northern and northwestern China and southern Mongolia | Gobi | 92%
|
| 60 million years old | Southern Africa, across parts of Botswana, Namibia, and South Africa | Kalahari | 85%
|
| 10 – 15 million years old | Northern Chile | Atacama | 77%
|
| 15 million years old | Southern Hemisphere | Antarctica | 54%
|
| 55 – 80 million years old | Across parts of Namibia, South Africa, and Angola | Namib | 50%
|
| 5.3 million years old | Northwestern China | Taklamakan | 19%
|