| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| chemical warfare in wwi | 0.24 | 0.7 | 6732 | 99 | 23 |
| chemical | 0.34 | 0.7 | 6080 | 12 | 8 |
| warfare | 1.08 | 0.5 | 6632 | 6 | 7 |
| in | 0.06 | 0.4 | 6452 | 8 | 2 |
| wwi | 0.18 | 0.1 | 4509 | 35 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| chemical warfare in wwi | 0.77 | 0.8 | 7768 | 71 |
| chemical warfare in ww1 | 1.78 | 1 | 8744 | 15 |
| chemical warfare in ww2 | 1.09 | 1 | 5342 | 16 |
| chemical warfare in vietnam | 0.91 | 0.1 | 9265 | 6 |
| chemical warfare in vietnam war | 1.49 | 0.4 | 559 | 74 |
| chemical warfare in vietnam effects | 1.12 | 0.8 | 4869 | 19 |
| how was chemical warfare used in wwi | 1.25 | 0.7 | 9553 | 11 |
| first use of chemical warfare in wwi | 1.24 | 0.4 | 519 | 70 |
| wwii chemical warfare | 1.97 | 0.1 | 7903 | 1 |
| us chemical warfare wwii | 1.98 | 0.7 | 9181 | 37 |
| how was chemical warfare used in ww1 | 1.37 | 0.3 | 7284 | 38 |
