| http://www.w3.org/ns/prov#value | - Arsenic, one of the first elements used as a pesticide, is toxic to many life-forms, including people. ??? ??? ??? Bronchiole Small airway (subdivision of the bronchus) that leads to areas of the lung and absorbs oxygen from the air. ??? ??? ??? Brownfield An abandoned or underutilized property that is not being redeveloped because of fears that it may be contaminated with hazardous substances. ??
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