Translation is the communication of the meaning of a source-language text by means of an equivalent target-language text. The English language draws a terminological distinction (not all languages do) between translating (a written text) and interpreting (oral or sign-language communication between users of different languages); under this distinction, translation can begin only after the appearance of writing within a language community.
Africa is the world's second most-populous continent after Asia and has a huge need for energy and feedstock supply. African food and agricultural waste provides an excellent substrate for biorefinery processes for the production of valuable, sustainable products, including biofuel.