title: Baadhayaasha federaalka: Tuubbo sun ah oo sababtay qarax ka dhacay warshadda shidaalka ee Philadelphia laguma baarin sunta 45kii sano ee la soo dhaafay
abstract: Bishii Agoosto, mas'uuliyiintu waxay sheegeen in sii deynta gaaska hydrocarbon ee aan loo baahnayn ay sababtay dabka.