2026年1月6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 …

2025年12月29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 …

Rock Island, city, seat (1833) of Rock Island county, northwestern Illinois, U.S. It lies on the Mississippi River (bridged to Iowa) at the mouth of the Rock River and opposite the island for which it was named.

Rock Hill, city, York county, northern South Carolina, U.S., near the Catawba River, 26 miles (42 km) south of Charlotte, North Carolina. Established in 1851 as a depot on the Charlotte and South …

2025年12月17日 · Sedimentary rock - Deposition, Stratification, Weathering: The sedimentary environment is the specific depositional setting of a particular sedimentary rock and is unique in …

2026年1月2日 · rock and roll, style of popular music that originated in the United States in the mid-1950s and that evolved by the mid-1960s into the more encompassing international style known as rock …

2026年1月13日 · Little Rock Nine, group of African American high-school students who challenged racial segregation in the public schools of Little Rock, Arkansas.

2025年12月17日 · Sedimentary rock, rock formed at or near Earth’s surface by the accumulation and lithification of sediment or by the precipitation from solution at normal surface temperatures. …

ROCK meaning: 1 : to move (someone or something) back and forth or from side to side; 2 : to cause (something) to shake violently sometimes used figuratively

2026年1月6日 · The trouble is that the term rock describes an evolving musical practice informed by a variety of nonmusical arguments (about creativity, sincerity, commerce, and popularity).