| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| jonas salk survival of the wisest pdf | 1.16 | 0.6 | 5796 | 22 |
| jonas salk survival of the wisest | 0.84 | 0.1 | 6958 | 36 |
| survival of the wisest pdf | 0.63 | 0.7 | 2017 | 93 |
| the survival of the wisest | 0.35 | 0.2 | 6792 | 72 |
| the story of jonas salk | 1.68 | 1 | 4689 | 48 |
| free pdf survival handbook john wiseman | 1.97 | 1 | 7916 | 35 |
| jonas salk fun facts | 0.74 | 0.7 | 8704 | 100 |
| looking for scientist jonas salk | 0.27 | 0.6 | 5419 | 40 |
| facts about jonas salk | 1.8 | 0.4 | 2778 | 99 |
| jonas salk contribution to science | 1.92 | 0.3 | 2290 | 84 |
| why was jonas salk important | 0.62 | 0.6 | 3523 | 54 |
