| |||
| direction de propagation des vagues | |||
|
wave propagation direction : 3 phrases in 2 subjects |
| Natural resourses and wildlife conservation | 2 |
| Technology | 1 |
| |||
| direction de propagation des vagues | |||
|
wave propagation direction : 3 phrases in 2 subjects |
| Natural resourses and wildlife conservation | 2 |
| Technology | 1 |