| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] carbon dioxide | 94 |
|
| 2 | atmospheric carbon [noun sg] | 16 |
|
| 3 | [adj] carbon monoxide | 16 |
|
| 4 | global carbon [noun sg] | 8 |
|
| 5 | [adj] carbon content | 8 |
|
| 6 | high carbon [noun sg] | 8 |
|
| 7 | solid carbon [noun sg] | 7 |
|
| 8 | activated carbon [noun sg] | 7 |
|
| 9 | [adj] carbon tax | 7 |
|
| 10 | [adj] carbon steel | 7 |
|
| 11 | excess carbon [noun sg] | 6 |
|
| 12 | man-made carbon [noun sg] | 5 |
|
| 13 | [adj] carbon adsorption | 5 |
|
| 14 | [adj] carbon fibre | 5 |
|
