| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| composition of expired air | 1.09 | 0.2 | 7383 | 56 | 26 |
| composition | 1.89 | 0.7 | 8773 | 16 | 11 |
| of | 1.22 | 1 | 1695 | 67 | 2 |
| expired | 1.23 | 0.2 | 5969 | 14 | 7 |
| air | 0.62 | 0.4 | 1030 | 80 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| composition of expired air | 0.78 | 0.4 | 6789 | 18 |
