| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| definition of a mass extinction event | 0.44 | 0.1 | 5838 | 50 | 37 |
| definition | 2 | 0.6 | 9495 | 9 | 10 |
| of | 1.3 | 0.9 | 3149 | 81 | 2 |
| a | 0.57 | 0.9 | 874 | 62 | 1 |
| mass | 0.43 | 0.7 | 7006 | 57 | 4 |
| extinction | 0.21 | 0.7 | 7538 | 98 | 10 |
| event | 0.18 | 0.2 | 5678 | 58 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| definition of a mass extinction event | 1.12 | 0.7 | 2326 | 32 |
