| Answer | Crossword Clue |
|---|---|
| biogenies | BIOGENY, the development of life from preexisting life |
| biogeny | the development of life from preexisting life |
| eutrophication | Excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen |
