| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what were effects of the railroad system | 0.61 | 0.5 | 5401 | 86 |
| what were the effects of railroad expansion | 0.54 | 0.6 | 5836 | 92 |
| negative effects of the railroad | 1.95 | 0.7 | 1027 | 61 |
| impact of the railroad | 0.02 | 0.6 | 2225 | 92 |
| list 6 effects of the railroad | 0.8 | 0.1 | 4768 | 57 |
| effects of the growth of railroads | 0.17 | 0.8 | 17 | 64 |
| how did the railroad affect the economy | 0.82 | 0.5 | 6720 | 39 |
| how did the railroad impact the world | 1.98 | 0.9 | 4235 | 70 |
| effect of railroads on the united states | 1.87 | 0.1 | 3693 | 92 |
| how did the railroad impact society | 1.66 | 0.9 | 8259 | 53 |
| negative impacts of railroads | 1.34 | 0.2 | 4148 | 48 |
| how did railroads affect society | 0.92 | 0.4 | 5185 | 96 |
| economic impact of railroads | 0.55 | 0.6 | 9490 | 13 |
| how did the railroads impact america | 1.87 | 0.1 | 1130 | 73 |
| how railroads affected society | 0.56 | 0.1 | 9147 | 47 |
