U fiirso qoraalka hoose ka dibna ka jawaab su'aasha kadib isla luqadda qoraalka:  Passage: Joseph Priestley (; 24 Maarso [O.S. 13 Maarso] 1733 <unk> 6 Febraayo 1804) wuxuu ahaa 18th-century English Separatist theologian, natural philosopher, chemist, innovative grammarian, multi-subject educator, and liberal political theorist oo daabacay in ka badan 150 shaqo. Taariikh ahaan waxaa loo aaneeyey inuu helay oksijiinta, isagoo ka go'ay xaaladdiisa gaaska, inkasta oo Carl Wilhelm Scheele iyo Antoine Lavoisier ay sidoo kale sheeganayaan inay si xoog leh u sheeganayaan daahfurka. Inta uu noolaa, sumcadda cilmiyeed ee Priestley waxay ku tiirsanayd hal-abuurkiisa biyaha soda, qoraalladiisa ku saabsan korontada, iyo daahfurka dhowr "hawada" (gaasaska), kan ugu caansan ee Priestley uu ugu magac daray "hawada dephlogisticated" (oksijiinta). Si kastaba ha ahaatee, goʼaankii uu Priestley qaatay inuu difaaco aragtidii phlogiston-ka oo uu diido wixii ka dambeeyey kacaankii kiimikada wuxuu keeney inuu go'doomiyo bulshada sayniska.  Su'aal: Yuu ahaa Joseph Priestley?
18aad ee qarnigii Ingiriiska Separatist fiqiga, falsafada dabiiciga ah, kiimikada, naxwaha hal abuur leh, macalinka maadooyinka badan, iyo aragtida siyaasadeed ee xor ah oo daabacay in ka badan 150 shaqo