| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| how old is our planet earth quizlet | 1 | 0.3 | 6686 | 14 |
| how old is the earth quizlet | 1.13 | 0.4 | 2001 | 69 |
| the earth is about how old | 1.15 | 0.5 | 5728 | 66 |
| how old earth is the earth | 0.21 | 0.5 | 2807 | 99 |
| the earth is approximately how old | 1.14 | 0.6 | 8617 | 4 |
| how old is earth explain | 0.8 | 1 | 1580 | 88 |
| the age of the earth is approximately | 0.43 | 1 | 815 | 71 |
| the age of the earth is about | 0.24 | 0.3 | 5787 | 92 |
| roughly how old is the earth | 0.93 | 0.3 | 3997 | 85 |
| the approximate age of the earth is | 1.8 | 0.8 | 7553 | 82 |
| how old is earth according to science | 0.6 | 0.1 | 6917 | 68 |
| age of the earth facts | 0.39 | 0.2 | 3840 | 15 |
| how old is earth quizlet | 1.91 | 0.2 | 6129 | 16 |
| how old is our planet earth | 0.39 | 0.4 | 4552 | 37 |
| roughly how old is the planet earth | 1.6 | 0.7 | 5815 | 65 |
| how old is planet earth approximately | 1.22 | 0.3 | 936 | 92 |
| how old is the earth planet | 0.85 | 0.1 | 6412 | 69 |
| how many years old is planet earth | 1.52 | 0.2 | 7952 | 53 |
| how old is planet earth in years | 1.01 | 0.4 | 6110 | 34 |
| what is the age of planet earth | 1.98 | 0.4 | 9249 | 93 |
| planet earth through the ages | 0.75 | 0.6 | 8674 | 31 |
| age of planet earth in years | 1.57 | 0.4 | 1602 | 62 |
