| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| are human beings carbon based | 0.7 | 0.7 | 2188 | 61 |
| why are humans carbon based | 0.3 | 0.1 | 4329 | 45 |
| are humans mostly carbon | 1.63 | 0.6 | 4378 | 37 |
| are humans made up of carbon | 0.44 | 0.4 | 1077 | 91 |
| are humans a carbon based life form | 0.87 | 0.6 | 7178 | 1 |
| is carbon in humans | 0.41 | 0.7 | 1129 | 37 |
| are humans carbon based lifeforms | 0.09 | 0.2 | 7365 | 44 |
| how much carbon are humans made of | 1.33 | 0.8 | 5514 | 35 |
| carbon in human body | 0.02 | 1 | 1827 | 45 |
| is carbon present in the human body | 0.68 | 0.7 | 317 | 84 |
| which is true about carbon | 0.45 | 1 | 9345 | 98 |
| do humans emit carbon | 0.98 | 0.8 | 9088 | 10 |
| is carbon man made or natural | 0.6 | 0.1 | 1172 | 14 |
