CLUES
- This area covers more than 3 million hectares.
- Wind, along with river and ocean currents, carried materials thousands of kilometers to form these desert dunes.
- The area includes gravel plains, coastal flats, rocky hills, a coastal lagoon and ephemeral rivers.
- Fog is the primary source of water here and provides an enviroment for insects, reptiles and mammals.
ANSWER Namib Sand Sea, Namibia
