| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| formation of coal deposits | 1.67 | 0.6 | 8976 | 77 | 26 |
| formation | 1.91 | 0.8 | 7262 | 13 | 9 |
| of | 0.66 | 0.3 | 1688 | 41 | 2 |
| coal | 1.62 | 0.8 | 5938 | 56 | 4 |
| deposits | 1.19 | 0.3 | 7030 | 29 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| formation of coal deposits | 0.04 | 0.9 | 8970 | 54 |
| coal deposits were formed from | 1.39 | 0.3 | 3775 | 25 |
| the formation of coal | 1.85 | 0.1 | 837 | 12 |
| process of formation of coal | 0.98 | 0.9 | 7593 | 3 |
| explain the formation of coal | 0.43 | 0.3 | 3065 | 52 |
| explain the process of formation of coal | 1.29 | 1 | 4767 | 5 |
| describe the formation of coal | 0.88 | 0.7 | 221 | 88 |
| coal deposits originate from | 1.52 | 0.3 | 2888 | 60 |
| what is coal formation | 0.99 | 0.5 | 9862 | 77 |
| describe the process of coal formation | 0.51 | 0.6 | 1411 | 56 |
| geological process of coal | 0.84 | 0.1 | 8985 | 97 |
| what are coal deposits | 1.87 | 0.7 | 9618 | 45 |
| the process that produces coal deposits is | 1.39 | 0.3 | 9928 | 93 |
| how was coal formed | 0.23 | 0.2 | 1151 | 70 |
