If ''The Wretched of the Earth'' was not ''the handbook for the black revolution,'' as its publisher boasted, it was certainly a sourcebook of revolutionary slogans. (Eldridge Cleaver once said that ''every brother on a rooftop can quote Fanon.'') ''Violence,'' Fanon argued most famously, ''is a cleansing force.
Carbon dioxide is taken in by plants and split into oxygen and carbon. The oxygen is releas â¦ ed as a bi-product. The carbon is used to make glucose, a sugar that plants synthesize for energy.
In agriculture, carbon dioxide is used as a fertilizer. An insufficiency of carbon dioxide in the air, which frequently occurs when the ground is shielded, as is especially the case with hydroponic cultivation, lowers the rate of photosynthesis and the crop yield.