| occur in active regions | 0.53 |
| hit the earth | 0.53 |
| occur at time | 0.45 |
| occur on our sun | 0.44 |
| ignite in the air | 0.41 |
| take a few minutes | 0.41 |
| add up over time | 0.34 |
| evaporated any atmosphe… | 0.32 |
| trail off toward the en… | 0.29 |
| emit radiation | 0.29 |
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| earthquake | 0.25 |
| regulated safety devices | 0.34 |
| pyrotechnic devices | 0.25 |
| dropped | 0.51 |
| fired | 0.49 |
| associated with coronal… | 0.46 |
| removed | 0.46 |
| lit | 0.45 |
| designed | 0.44 |
| controlled | 0.43 |
| thrown | 0.41 |
| caused by light | 0.38 |
| ignited | 0.36 |
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