| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| encyclopedia of space pdf | 1.41 | 0.3 | 6906 | 63 | 25 |
| encyclopedia | 0.25 | 0.2 | 4677 | 4 | 12 |
| of | 1.83 | 1 | 3413 | 82 | 2 |
| space | 0.57 | 0.5 | 6516 | 23 | 5 |
| 1.29 | 0.5 | 2814 | 68 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| encyclopedia of space pdf | 1.21 | 0.8 | 8177 | 9 |
