🌐EnglishEnglishDeutschEspañolالعربية中文EntityQ16966036· pop 5· linked from 24 articlesmaterial efficiencymetric which expresses the degree in which raw materials are consumed, incorporated, or wastedAvailable in 5 languagesEspañolDeutschالعربيةFinnishvia Wikidata sitelinks · CC0Connectionsnature conservationEntitysustainable food systemEntityCategoriesBuilding engineeringMaterial flowSustainable building