| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| dead zones in the sea | 0.22 | 1 | 3754 | 56 |
| dead zones in the sea toefl | 0.87 | 0.9 | 4910 | 90 |
| baltic sea dead zones | 0.06 | 0.4 | 7693 | 7 |
| how are dead zones in the baltic sea produced | 1.52 | 0.4 | 3038 | 4 |
| why are dead zones seasonal | 1.49 | 0.2 | 4414 | 18 |
| caspian sea dead zones | 0.75 | 1 | 4729 | 11 |
| dead zones in the ocean | 1.61 | 1 | 9413 | 88 |
| is the dead sea a dead zone | 0.85 | 1 | 5149 | 56 |
| dead zones in the atlantic ocean | 1.97 | 0.4 | 9302 | 84 |
| dead zones in the ocean result from | 0.77 | 0.9 | 1513 | 75 |
| map of ocean dead zones | 1.75 | 0.1 | 6832 | 89 |
| dead zones in the world | 1.06 | 0.3 | 6770 | 75 |
| what are ocean dead zones | 0.76 | 0.6 | 4335 | 68 |
| dead sea feet below sea level | 0.02 | 1 | 6323 | 82 |
| list of dead zones | 1.6 | 0.5 | 727 | 5 |
