| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| air on earth is composed of | 0.85 | 0.9 | 450 | 7 |
| composition of air on earth | 0.35 | 0.9 | 3545 | 48 |
| what is air made of on earth | 1.91 | 0.3 | 9581 | 40 |
| air is composed of | 1.2 | 0.6 | 1541 | 6 |
| what is earth's air made of | 1.71 | 0.4 | 2302 | 45 |
| air is mostly made up of | 0.13 | 0.1 | 8254 | 18 |
| air is primarily made up of | 1.04 | 0.8 | 2187 | 30 |
| contains the earth's air | 1.63 | 0.1 | 9815 | 36 |
| air is composed of what gases | 0.56 | 0.8 | 9102 | 42 |
| air is made up of what elements | 0.36 | 0.9 | 8264 | 1 |
| what does air and earth make | 1.96 | 0.4 | 6491 | 24 |
| what is air comprised of | 1.25 | 1 | 266 | 32 |
| what is air consist of | 0.6 | 0.3 | 670 | 46 |
| elements in earth air | 1.31 | 0.9 | 7225 | 21 |
