| Similarity | Rank | |
|---|---|---|
| Nitrogen | 0.885 | 45976 |
| phosphorus | 0.856 | 23230 |
| sulfur | 0.842 | 22001 |
| ammonia | 0.838 | 21773 |
| dioxide | 0.831 | 10273 |
| ammonium | 0.819 | 48164 |
| urea | 0.813 | 40711 |
| phosphorous | 0.813 | 49921 |
| leaching | 0.807 | 47493 |
| adsorption | 0.801 | 61899 |
| methane | 0.801 | 19799 |
| phosphates | 0.793 | 65870 |
| contaminant | 0.793 | 45441 |
| hydrocarbons | 0.791 | 32458 |
| oxides | 0.791 | 42880 |
| nutrient | 0.789 | 11144 |
| chlorophyll | 0.788 | 42980 |
| gases | 0.788 | 11662 |
| SO2 | 0.788 | 90224 |
| evaporation | 0.784 | 27570 |
| transpiration | 0.784 | 99515 |
| sulphur | 0.783 | 34384 |
| nitrate | 0.782 | 24975 |
| photosynthetic | 0.782 | 75795 |
| algal | 0.781 | 56888 |