| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| clean air act definition us history | 0.25 | 0.2 | 438 | 56 | 35 |
| clean | 0.59 | 1 | 444 | 53 | 5 |
| air | 1.51 | 0.2 | 8658 | 61 | 3 |
| act | 1.65 | 0.9 | 8063 | 44 | 3 |
| definition | 1.19 | 0.4 | 6790 | 61 | 10 |
| us | 0.6 | 1 | 6628 | 13 | 2 |
| history | 0.98 | 0.1 | 2771 | 23 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| clean air act definition us history | 0.63 | 0.7 | 6502 | 90 |
