| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| plutonium found in nature | 1.11 | 0.1 | 998 | 82 | 25 |
| plutonium | 1.68 | 0.1 | 1327 | 16 | 9 |
| found | 1.07 | 0.3 | 2883 | 83 | 5 |
| in | 1.61 | 0.7 | 5488 | 55 | 2 |
| nature | 0.57 | 0.9 | 6522 | 63 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| plutonium found in nature | 0.63 | 0.8 | 1257 | 42 |
