- List of U. S. Cities | Britannica
The United States contains a highly diverse population Unlike a country such as China that largely incorporated Indigenous peoples, the United States has a diversity that to a great degree has come from immense and sustained global immigration Probably no other country has a wider range of racial, ethnic, and cultural types than does the United States
- rock - Kids | Britannica Kids | Homework Help
Rock, or stone, is a hard material made up of one or more minerals Rock makes up the outer layer of Earth, called the crust The lower parts of this layer are solid rock, or…
- Prison, Island, Inmates, Escapes, History Facts - Britannica
Alcatraz, former maximum-security prison located on Alcatraz Island in San Francisco Bay, some 1 5 miles (2 4 km) off the coast of California First used as a jail during the American Civil War, Alcatraz became a federal penitentiary in 1934 In the ensuing years it became famous for such high-profile inmates as Al Capone The prison also made headlines for several escape attempts
- rock - Students | Britannica Kids | Homework Help
Courtesy of Ernst ten Haaf Sedimentary rock forms from rock fragments, sand, mud, and other materials that are compacted and cemented together at Earth’s surface The materials that form sedimentary rock generally are carried by water, wind, ice, or other means and are then deposited on land or on the bottoms of oceans, lakes, or rivers, forming layers
- List of Musical Bands | Rock, Pop, Grunge | Britannica
This is an alphabetically ordered list of bands See also band, rock, alternative rock, popular music, heavy metal, grunge, psychedelic rock, punk, and country
- Rock, Massachusetts, Colony, Map, History, Facts - Britannica
Plymouth, town (township), Plymouth county, southeastern Massachusetts, U S It lies on Plymouth Bay, 37 miles (60 km) southeast of Boston It was the site of the first permanent settlement by Europeans in New England, Plymouth colony, known formally as the colony of New Plymouth The town was founded by Pilgrims (Separatists from the Church of England) who, in their search for religious
- Metamorphic rock | Definition, Formation, Facts | Britannica
Metamorphic rock, any rock that results from the alteration of preexisting rocks in response to changing conditions, such as variations in temperature, pressure, and mechanical stress, and the addition or subtraction of chemical components The preexisting rocks may be igneous, sedimentary, or other metamorphic rocks
- Geology | Definition, Examples, Rocks, Study, Importance, Facts . . .
An introduction to the geochemical and geophysical sciences logically begins with mineralogy, because Earth’s rocks are composed of minerals—inorganic elements or compounds that have a fixed chemical composition and that are made up of regularly aligned rows of atoms Today one of the principal concerns of mineralogy is the chemical analysis of the some 3,000 known minerals that are the
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