| Similarity | Rank | |
|---|---|---|
| wastewater | 0.750 | 16254 |
| Water_Quality | 0.734 | 57978 |
| Groundwater | 0.713 | 56268 |
| wastewater_treatment | 0.698 | 51114 |
| Water_Supply | 0.695 | 82265 |
| Water | 0.675 | 3805 |
| wastewater_treatment_plant | 0.670 | 59904 |
| waste_water | 0.663 | 36994 |
| stormwater | 0.648 | 37648 |
| Waste | 0.644 | 21490 |
| Water_Resources | 0.639 | 38831 |
| sewage | 0.630 | 20240 |
| storm_water | 0.629 | 71726 |
| treatment_plant | 0.624 | 48607 |
| effluent | 0.616 | 39640 |
| water_treatment | 0.615 | 44454 |
| Sanitation | 0.613 | 64025 |
| Waste_Management | 0.610 | 37837 |
| Irrigation | 0.609 | 79619 |
| sewerage | 0.607 | 65854 |
| Environmental_Engineering | 0.604 | 99326 |
| Landfill | 0.596 | 76982 |
| Soil | 0.595 | 29920 |
| groundwater | 0.591 | 10207 |
| treat_water | 0.590 | 93862 |