 |
| |||
| cation exchange; base exchange | |||
| |||
| cation exchange | |||
| échange des cations: 12 phrases in 8 subjects |
| Agriculture | 1 |
| Chemistry | 3 |
| Construction | 1 |
| Earth sciences | 1 |
| Environment | 1 |
| General | 1 |
| Natural resourses and wildlife conservation | 2 |
| Water resources | 2 |
|
| |||
| cation exchange; base exchange | |||
| |||
| cation exchange | |||
| échange des cations: 12 phrases in 8 subjects |
| Agriculture | 1 |
| Chemistry | 3 |
| Construction | 1 |
| Earth sciences | 1 |
| Environment | 1 |
| General | 1 |
| Natural resourses and wildlife conservation | 2 |
| Water resources | 2 |