| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| make up of air we breathe | 1.65 | 0.2 | 3255 | 32 |
| what gases make up the air we breathe | 0.52 | 0.9 | 2202 | 46 |
| what atoms make up the air we breathe | 0.82 | 1 | 2594 | 37 |
| what elements make up the air we breathe | 0.42 | 0.9 | 9152 | 8 |
| various gases that make up the air we breathe | 1.22 | 0.9 | 3170 | 79 |
| gases that make up the air we breathe | 1.62 | 0.6 | 3394 | 26 |
| what is the make up of the air we breathe | 1.42 | 1 | 4383 | 73 |
| what gases make up the air | 0.07 | 0.3 | 9816 | 65 |
| what makes up the air we breathe | 1.9 | 0.9 | 2823 | 12 |
| what gases do we breathe out | 0.9 | 1 | 5650 | 44 |
| main gases that make up air | 0.97 | 0.9 | 1939 | 65 |
| what does the air we breathe contain | 1.13 | 0.8 | 2002 | 76 |
| what are the gases in the air | 0.29 | 0.7 | 8141 | 13 |
| what gases do humans breathe out | 0.61 | 0.6 | 9435 | 30 |
| what gases are found in air | 0.46 | 0.7 | 3702 | 15 |
| what gases are air made of | 0.17 | 0.1 | 8896 | 30 |
