| Keyword | CPC | PCC | Volume | Length string | Score |
|---|---|---|---|---|---|
| definition geologic time scale | 1.74 | 0.5 | 743 | 30 | 67 |
| geologic time scale definition science | 0.48 | 0.9 | 7034 | 38 | 80 |
| geologic time scale definition biology | 1.88 | 0.5 | 2798 | 38 | 62 |
| geologic time scale definition earth science | 0.76 | 0.9 | 3000 | 44 | 53 |
| geologic time scale simple definition | 0.76 | 0.1 | 3753 | 37 | 21 |
| what is the definition of geologic time scale | 1.29 | 0.9 | 7249 | 45 | 26 |
