Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
major sources of water pollution | 1.43 | 0.7 | 5104 | 19 |
what are the major sources of water pollution | 1.06 | 0.6 | 685 | 97 |
list three major sources of water pollution | 1.31 | 0.5 | 5043 | 44 |
five major sources of water pollution | 0.32 | 0.5 | 7783 | 90 |