Kutumia protini zinazotokana na mimea kuongeza chakula cha samaki imekuwa sehemu ya ufugaji wa samaki kwa miongo kadhaa. Chakula cha samaki hutokana na kuvuna aina za samaki kama vile nanga, ufugaji, menhaden, na sardines. Dodoma

The primary starting material for aluminum refining is bauxite. Since aluminum is a reactive element and does not occur naturally, aluminum-rich ore needs to be refined to produce alumina and

According to a report from the Energy Information Administration, operating margins for corn-based fuel ethanol plants decreased to a multi-year low in 2019. This was due in part because production