| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| simple diffusion concentration gradient | 0.97 | 0.8 | 725 | 45 | 39 |
| simple | 1.98 | 0.4 | 2798 | 90 | 6 |
| diffusion | 1.04 | 0.4 | 2422 | 50 | 9 |
| concentration | 1.05 | 1 | 4486 | 13 | 13 |
| gradient | 1.21 | 0.1 | 1447 | 98 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| simple diffusion concentration gradient | 0.8 | 0.1 | 2338 | 19 |
