| Similarity | Rank | |
|---|---|---|
| water_quality | 0.758 | 8567 |
| Water_Resources | 0.745 | 38831 |
| Groundwater | 0.735 | 56268 |
| Wastewater | 0.734 | 85442 |
| Water_Supply | 0.730 | 82265 |
| Soils | 0.697 | 90654 |
| Air_Quality | 0.686 | 61690 |
| Hydrology | 0.683 | 99226 |
| Watershed | 0.681 | 36504 |
| Pollution | 0.678 | 67166 |
| Wetland | 0.670 | 32703 |
| Environmental | 0.660 | 12483 |
| Soil | 0.657 | 29920 |
| Land_Use | 0.647 | 44075 |
| Water | 0.638 | 3805 |
| Natural_Resources | 0.629 | 20910 |
| Environmental_Science | 0.628 | 32182 |
| Environmental_Management | 0.628 | 46550 |
| watershed | 0.624 | 7372 |
| surface_water | 0.622 | 17620 |
| groundwater | 0.622 | 10207 |
| improve_water_quality | 0.616 | 76345 |
| hydrology | 0.616 | 26128 |
| Environmental_Engineering | 0.612 | 99326 |
| Aquaculture | 0.612 | 67567 |