| Keyword | CPC | PCC | Volume | Length string | Score |
|---|---|---|---|---|---|
| how are mid ocean ridges formed | 1.67 | 0.5 | 8919 | 31 | 17 |
| mid ocean ridges are formed by what boundary | 0.06 | 0.7 | 3523 | 44 | 65 |
| what are mid ocean ridges formed by | 0.36 | 0.9 | 8703 | 35 | 88 |
| mid ocean ridges formed | 0.19 | 0.6 | 8538 | 23 | 24 |
| explain how mid ocean ridges are formed | 1.58 | 1 | 9936 | 39 | 90 |
| new crust is formed at mid ocean ridges | 1.6 | 0.9 | 1754 | 39 | 82 |
| what boundary causes mid ocean ridge | 0.8 | 0.8 | 7967 | 36 | 1 |
| where do mid ocean ridges form | 0.11 | 0.4 | 534 | 30 | 6 |
