| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| life on earth 1 billion years ago | 1.49 | 0.3 | 5880 | 12 |
| life on earth 1 million years ago | 0.6 | 0.4 | 4252 | 3 |
| life on earth 3.5 billion years ago | 1.92 | 0.3 | 7822 | 10 |
| life on earth 100 million years ago | 1.69 | 0.5 | 6157 | 48 |
| earth 1 billion years ago | 1.05 | 0.1 | 1462 | 39 |
| life on earth 65 million years ago | 0.93 | 0.1 | 3597 | 29 |
| life a billion years ago | 1.56 | 0.3 | 1875 | 46 |
| life on earth 400 million years ago | 1.36 | 0.2 | 6160 | 30 |
| life on earth 700 million years ago | 0.67 | 0.6 | 4215 | 47 |
| earth a billion years ago | 0.16 | 0.6 | 2325 | 4 |
| life on earth 500 million years ago | 1.19 | 0.5 | 4057 | 85 |
| life on earth 2 million years ago | 1.54 | 0.4 | 1437 | 70 |
| life on earth 200 million years ago | 0.72 | 0.8 | 2319 | 32 |
| life on earth 50 000 years ago | 1.43 | 0.3 | 5194 | 71 |
| earth 1 to 2 billion years ago | 1.37 | 0.4 | 6635 | 81 |
| earth 1.5 billion years ago | 1.87 | 0.8 | 3579 | 69 |
| earth 42 million years ago life | 1.99 | 0.2 | 7143 | 4 |
| earth 10 billion years ago | 0.83 | 0.1 | 5666 | 46 |
