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.

摘要废弃是人类为满足要的产，如菜籽于油菜籽取油，果渣于水果取汁，鸡粪于规模化养鸡。