Gold and diamonds, but also coal and salt... These mineral resources are often hidden deep in the earth and must be brought to light in mining. WHAT IS WHAT gives fascinating insights into a highly exciting topic!
| Title | Treasures of the Earth |
|---|---|
| Genres | Documentary Kids |
| Release Date | 2009-12-05 |
| Episode Runtime | 00 Hours 25 Minutes |
| Season Number | 2 |
| Episode Number | 10 |
| Production Companies | Tessloff Verlag |
