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The United States of America ( U.S.A. or USA ), commonly known as the United States ( U.S., US or the States ), or simply America, is a sovereign country mostly in North America. It is divided into 50 states. Forty-eight of these states and the District of Columbia border each other between the Pacific and Atlantic Oceans.
The physiographic regions of the contiguous United States comprise 8 divisions, 25 provinces, and 85 sections. [1] The system dates to Nevin Fenneman 's report Physiographic Divisions of the United States, published in 1916. [2] [3] The map was updated and republished by the Association of American Geographers in 1928. [4]
The ecoregions and ecology found in the Western United States are extremely varied. For instance, large areas of land are made up of everything from sand dunes in the Central Basin and Range ecoregion , which makes up much of the State of Nevada , to the ecology of the North Cascades in Washington state , which has the largest concentration of active alpine glaciers in the lower 48 .
The Church of Scientology Western United States (CoSWUS) is a Californian 501 (c) (3) non-profit corporation, located in Los Angeles. [1] CoSWUS is integrated within the ecclesiastical hierarchy of the Church of Scientology. The corporation is composed of several individual Scientology organizations and entities, among them churches, such as ...
The West Coast of the United States is a term that generally refers to the states of California, Oregon, and Washington. Depending on the context, it can also include Alaska and/or the state of Hawaii. Almost 50 million people live in these five states. The region includes the cities of Los Angeles, San Francisco, Seattle, Anchorage, Portland ...
Wildfires can happen in many places in the United States, especially during droughts, but are most common in the Western United States and Florida. [3] They may be triggered naturally, most commonly by lightning, or by human activity like unextinguished smoking materials, faulty electrical equipment, overheating automobiles, or arson.
Coal mining is an industry in transition in the United States. Production in 2019 was down 40% from the peak production of 1,171.8 million short tons (1,063 million metric tons) in 2008. Employment of 43,000 coal miners is down from a peak of 883,000 in 1923. [1] Generation of electricity is the largest user of coal, being used to produce 50% ...
