SOIL HORIZON
\sˈɔ͡ɪl həɹˈa͡ɪzən], \sˈɔɪl həɹˈaɪzən], \s_ˈɔɪ_l h_ə_ɹ_ˈaɪ_z_ə_n]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.