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Tucson (; Spanish: Tucsón; O'odham: Cuk-Ṣon; Navajo: Tó Oostsʼąʼ) is a city in and the county...
Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS). It is the...
Westminster is a district in central London, part of the wider City of Westminster. The area,...