| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| kinds of air pollution | 0.86 | 0.7 | 7966 | 92 | 22 |
| kinds | 0.25 | 0.3 | 1365 | 13 | 5 |
| of | 0.53 | 0.8 | 2748 | 17 | 2 |
| air | 0.23 | 0.7 | 9419 | 48 | 3 |
| pollution | 1.59 | 0.7 | 8832 | 47 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| kinds of air pollution | 0.31 | 0.6 | 8690 | 41 |
| different kinds of air pollution | 1.66 | 0.8 | 2097 | 5 |
| what kind of air pollution do cars make | 1.26 | 0.4 | 2075 | 49 |
| different kinds of pollution | 0.23 | 0.1 | 9176 | 27 |
| categories of air pollution | 1.67 | 0.9 | 2399 | 33 |
| what kind of pollution do cars produce | 0.97 | 0.4 | 7043 | 22 |
| air pollution of cars | 1.63 | 0.5 | 8473 | 24 |
| how do cars cause air pollution | 1.54 | 0.5 | 8248 | 3 |
| air pollution caused by cars | 0.88 | 0.6 | 3284 | 29 |
| cars causing air pollution | 1.43 | 0.9 | 135 | 19 |
| air pollution due to cars | 0.23 | 0.4 | 3842 | 22 |
| percentage of air pollution caused by cars | 0.29 | 0.2 | 9042 | 85 |
