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macOS. macOS, originally Mac OS X, previously shortened as OS X, is an operating system developed and marketed by Apple since 2001. It is the primary operating system for Apple's Mac computers. Within the market of desktop and laptop computers, it is the second most widely used desktop OS, after Microsoft Windows and ahead of all Linux ...
t. e. The International Baccalaureate Organization (IBO), [1][2] more commonly known as the International Baccalaureate (IB), is a nonprofit foundation headquartered in Geneva, Switzerland, and founded in 1968. [3][4] It offers four educational programmes: the IB Diploma Programme and the IB Career-related Programme for students aged 16 to 19 ...
The student must maintain a 3.0 or higher grade point average and attend a public college or university in the state. [140] The Georgia Historical Society, an independent educational and research institution, has a research center located in Savannah. The research center's library and archives hold the oldest collection of materials related to ...
Permian–Triassic boundary at Frazer Beach in New South Wales, with the End Permian extinction event located just above the coal layer [2]. Approximately 251.9 million years ago, the Permian–Triassic (P–T, P–Tr) extinction event (PTME; also known as the Late Permian extinction event, [3] the Latest Permian extinction event, [4] the End-Permian extinction event, [5] [6] and colloquially ...
Minnesota (/ ˌ m ɪ n ə ˈ s oʊ t ə / ⓘ MIN-ə-SOH-tə) is a state in the Upper Midwestern region of the United States. It is bordered by the Canadian provinces of Manitoba and Ontario to the north and east and by the U.S. states of Wisconsin to the east, Iowa to the south, and North Dakota and South Dakota to the west.
The average land elevation is 579 ft (176.5 m) above sea level. While measurements vary somewhat, [105] the lowest points are along the lake shore at 578 ft (176.2 m), while the highest point, at 672 ft (205 m), is the morainal ridge of Blue Island in the city's far south side. [106]
There were 112,608 households in the city in 2000, of which 26.5% included children below the age of 18, 39.5% were composed of married couples living together, 11.4% reported a female householder with no husband present, and 45.5% classified themselves as nonfamily. Unmarried partners were present in 2.2% of households.
Philadelphia County received an ozone grade of F and a 24-hour particle pollution rating of D in the American Lung Association's 2017 State of the Air report, which analyzed data from 2013 to 2015. [ 115 ] [ 116 ] The city was ranked 22nd for ozone, 20th for short-term particle pollution, and 11th for year-round particle pollution. [ 117 ]