| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| was there more oxygen in prehistoric times | 1.36 | 0.6 | 1517 | 44 | 42 |
| was | 1.69 | 1 | 1800 | 26 | 3 |
| there | 1.14 | 0.8 | 8033 | 16 | 5 |
| more | 0.9 | 0.2 | 8613 | 78 | 4 |
| oxygen | 0.63 | 0.1 | 6648 | 98 | 6 |
| in | 1.33 | 0.2 | 2067 | 55 | 2 |
| prehistoric | 0.36 | 0.3 | 1568 | 11 | 11 |
| times | 0.02 | 0.4 | 3385 | 97 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| was there more oxygen in prehistoric times | 0.45 | 0.4 | 5400 | 7 |
