| |||
| sound propagation | |||
|
propagation de son : 4 phrases in 4 subjects |
| Communications | 1 |
| Natural resourses and wildlife conservation | 1 |
| Physical sciences | 1 |
| Technology | 1 |
| |||
| sound propagation | |||
|
propagation de son : 4 phrases in 4 subjects |
| Communications | 1 |
| Natural resourses and wildlife conservation | 1 |
| Physical sciences | 1 |
| Technology | 1 |