| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| definition of the ozone layer | 0.89 | 0.5 | 150 | 60 | 29 |
| definition | 1.93 | 1 | 4927 | 61 | 10 |
| of | 1.41 | 0.6 | 9746 | 63 | 2 |
| the | 0.29 | 0.4 | 7143 | 7 | 3 |
| ozone | 1.03 | 0.3 | 4721 | 37 | 5 |
| layer | 0.01 | 0.6 | 7728 | 31 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| definition of the ozone layer | 0.58 | 0.3 | 8610 | 67 |
