| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| closed system definition science | 1.85 | 0.2 | 252 | 85 | 32 |
| closed | 1.81 | 0.8 | 9683 | 65 | 6 |
| system | 0.51 | 0.7 | 6821 | 39 | 6 |
| definition | 0.75 | 0.2 | 6385 | 80 | 10 |
| science | 1.22 | 0.1 | 3372 | 71 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| closed system definition science | 0.14 | 1 | 1628 | 55 |
