Waste derived from human activitirs, such as rapeseed placentiform from the extraction of rape oil;fruit faeces from the extraction of fruit juice;chicken excrement from the scall farming of chickens.

摘废弃是人类为满足自的产，如菜自于油菜取油，果渣自于水果取汁，鸡粪自于规模化养鸡。