| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| is tuff extrusive or intrusive | 0.45 | 0.8 | 7115 | 17 |
| is volcanic tuff intrusive or extrusive | 1.33 | 0.2 | 5177 | 71 |
| is tuff intrusive or extrusive rock | 0.92 | 0.8 | 2042 | 76 |
| is volcanic intrusive or extrusive | 1.76 | 0.2 | 4884 | 77 |
| is tuff intrusive or extrusive | 0.06 | 0.2 | 7099 | 75 |
| volcano intrusive or extrusive | 0.53 | 0.9 | 5859 | 84 |
| are volcanic rocks extrusive or intrusive | 1.04 | 0.8 | 2896 | 10 |
| intrusive and extrusive volcanic features | 0.38 | 0.1 | 8206 | 38 |
| what is a volcanic tuff | 1.05 | 0.8 | 2622 | 65 |
| intrusive and extrusive volcanism | 0.94 | 1 | 3494 | 94 |
| is tuff a volcanic rock | 1 | 0.2 | 3014 | 25 |
| is lava extrusive or intrusive | 1.67 | 0.5 | 2811 | 41 |
| volcanic tuff rock type | 0.57 | 0.6 | 3925 | 69 |
| intrusive and extrusive volcanic landforms | 1.17 | 0.7 | 1650 | 16 |
| volcanic tuff igneous rock | 0.73 | 0.8 | 5273 | 4 |
| what type of rock is volcanic tuff | 1.66 | 0.5 | 966 | 97 |
| intrusive forms of volcano | 0.36 | 0.7 | 140 | 10 |
| was the tuff volcanic | 1.89 | 0.7 | 1703 | 18 |
| extrusive volcanic rock types | 0.03 | 0.2 | 6090 | 62 |
