| Similarity | Rank | |
|---|---|---|
| Groundwater | 0.798 | 66053 |
| Sewage | 0.771 | 66452 |
| Wastewater | 0.763 | 52649 |
| Water's | 0.762 | 74436 |
| Pollution | 0.761 | 29306 |
| Rainwater | 0.751 | 66981 |
| water | 0.739 | 249 |
| Pool | 0.737 | 11389 |
| Ponds | 0.730 | 56639 |
| Drainage | 0.730 | 48557 |
| Sanitation | 0.729 | 43413 |
| Stormwater | 0.728 | 62618 |
| Waters | 0.727 | 15873 |
| Clean | 0.726 | 7237 |
| Drinking | 0.725 | 16241 |
| Irrigation | 0.719 | 40766 |
| Pools | 0.717 | 37375 |
| Sediment | 0.716 | 95198 |
| Bottled | 0.716 | 56683 |
| Soil | 0.713 | 21080 |
| Tidal | 0.713 | 58502 |
| Filtration | 0.710 | 63090 |
| Aquifer | 0.708 | 88850 |
| Sewer | 0.705 | 44938 |
| Reclamation | 0.703 | 54409 |