2025年1月14日 · As the head of the government of the United States, the president is arguably the most powerful government official in the world. The president is elected to a four-year term via an electoral college system. Since the Twenty-second Amendment was adopted in 1951, the American presidency has been

2024年12月7日 · Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. The three major classes of rock are igneous, sedimentary, and metamorphic rock.

2025年1月19日 · Rock is a form of popular music that emerged in the 1950s and that by the end of the 20th century was the world’s dominant form of popular music. It originated in the United States and spread to other English-speaking countries and across Europe in the 1960s.

2024年12月19日 · Permian Basin, large sedimentary basin in western Texas and southeastern New Mexico, U.S., noted for its rich petroleum, natural gas, and potassium deposits. Owing to its economic importance, it is one of the most well-studied geologic regions of the world. Deposits of the Permian Basin are

2024年12月7日 · Rock - Structure, Texture, Composition: Physical properties of rocks are of interest and utility in many fields of work, including geology, petrophysics, geophysics, materials science, geochemistry, and geotechnical engineering. The scale of investigation ranges from the molecular and crystalline up to terrestrial studies of the Earth and other planetary bodies. …

2003年1月12日 · The Bee Gees were an English-Australian pop-rock band that embodied the disco era of the late 1970s. They are especially known for their work on the soundtrack to the film Saturday Night Fever (1977). With their high harmonies, elaborate melodies, and ornate orchestrations, the Bee Gees became one of the best-selling recording acts of all time.

2025年1月23日 · Plymouth, town (township), Plymouth county, southeastern Massachusetts, U.S. It was the site of the first permanent settlement by Europeans in New England, Plymouth colony. Its seaside location and historical associations make Plymouth a popular summer resort.

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…

Hurricane Helene was a large, catastrophic tropical cyclone notable for its rapid intensification that ultimately produced a wide swath of damage and loss of life that extended from northwestern Florida to Tennessee and North Carolina.

Britannica’s new platform provides content designed and written specifically for early learners. Creating a more engaging and fun learning experience for students, the activities in Britannica Fundamentals align with the content areas children learn in the classroom. From language and literacy to geography and mathematics, Britannica Fundamentals supports classroom …