Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
ozone layer is found in what layer | 0.29 | 0.6 | 8405 | 52 |
ozone layer is found in which layer | 0.35 | 1 | 3669 | 80 |
the ozone layer is found in this layer | 1.38 | 0.4 | 110 | 49 |
the layer where the ozone layer is found | 0.09 | 0.2 | 5816 | 80 |
which layer is the ozone gas layer found in | 1.39 | 0.5 | 6316 | 97 |