| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| define the term concentration gradient | 1.36 | 0.7 | 6193 | 22 | 38 |
| define | 0.59 | 0.2 | 6599 | 92 | 6 |
| the | 0.58 | 1 | 8258 | 13 | 3 |
| term | 0.98 | 0.9 | 7055 | 55 | 4 |
| concentration | 1.61 | 0.3 | 6698 | 28 | 13 |
| gradient | 1.56 | 0.7 | 375 | 22 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| define the term concentration gradient | 0.92 | 0.9 | 4996 | 5 |
