 |
|
eruption : 165 phrases in 18 subjects |
| Astronomy | 23 |
| Chemistry | 2 |
| Coal | 1 |
| Earth sciences | 23 |
| Economics | 1 |
| Environment | 1 |
| General | 14 |
| Geology | 1 |
| Health care | 7 |
| High energy physics | 1 |
| Medical | 63 |
| Metallurgy | 12 |
| Natural resourses and wildlife conservation | 1 |
| Natural sciences | 4 |
| Oil / petroleum | 8 |
| Physical sciences | 1 |
| Sailing | 1 |
| Technology | 1 |