collocation | frequency |
---|---|
carbon dioxide | 7 |
food security | 3 |
agricultural productivity | 3 |
percent decline | 3 |
nutritional quality | 2 |
food pyramid | 2 |
million people | 2 |
billion people | 2 |
climate change | 2 |
higher carbon | 2 |
iron deficiency | 2 |
field studies | 2 |
greenhouse gas | 2 |
gas emissions | 2 |
collocation | frequency |
---|---|
greenhouse gas emissions | 2 |