| Similarity | Rank | |
|---|---|---|
| organochlorine | 0.699 | 48475 |
| nitrogenous | 0.697 | 52585 |
| overfishing | 0.697 | 60336 |
| overgrazing | 0.690 | 43790 |
| depletion | 0.684 | 11015 |
| aral | 0.680 | 56674 |
| over-fishing | 0.679 | 60905 |
| caesium-137 | 0.677 | 59747 |
| above-ground | 0.661 | 56220 |
| icecap | 0.660 | 88649 |
| mineralize | 0.659 | 91073 |
| mtbe | 0.652 | 87435 |
| biofuel | 0.652 | 57289 |
| malathion | 0.651 | 55530 |
| oxidize | 0.650 | 38122 |
| photosynthesise | 0.650 | 68067 |
| replenish | 0.650 | 17313 |
| excrete | 0.646 | 20562 |
| shallow-water | 0.645 | 88599 |
| fuelwood | 0.645 | 39541 |
| mid-latitude | 0.644 | 87854 |
| defoliation | 0.644 | 62141 |
| transpiration | 0.643 | 52292 |
| tropospheric | 0.642 | 67421 |
| rangeland | 0.641 | 74004 |