| Similarity | Rank | |
|---|---|---|
| Recycling | 0.866 | 19598 |
| Landfill | 0.858 | 57827 |
| Disposal | 0.856 | 44203 |
| Sewage | 0.805 | 66452 |
| Wastewater | 0.804 | 52649 |
| Reuse | 0.782 | 52289 |
| Hazardous | 0.776 | 38834 |
| Pollution | 0.759 | 29306 |
| Stormwater | 0.753 | 62618 |
| waste | 0.749 | 1911 |
| Sludge | 0.749 | 98368 |
| Composting | 0.749 | 63833 |
| Sanitation | 0.748 | 43413 |
| Biomass | 0.737 | 50798 |
| Rubbish | 0.734 | 69801 |
| landfill | 0.732 | 16597 |
| Garbage | 0.726 | 39097 |
| Litter | 0.724 | 57480 |
| Remediation | 0.722 | 67735 |
| Compost | 0.720 | 48494 |
| Fuels | 0.719 | 48822 |
| Manure | 0.714 | 92894 |
| Scrap | 0.713 | 48130 |
| recycling | 0.711 | 6594 |
| Reclamation | 0.711 | 54409 |