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. Born in chicago in 1965 and raised in louisville, kentucky, she fell in with a group of musicians while a student at antioch college in ohio in the 1980s. Rock, in geology, a naturally occurring and coherent aggregate of mineral s The three major classes of rock— igneous, sedimentary, and metamorphic —are based on the processes that formed them.
In 1957 little rock was the scene of a pivotal point in the civil rights movement That year a showdown developed between the state and federal governments over the right of nine african american students to attend the city’s central high school. Rock remains the most democratic of mass media—the only one in which voices from the margins of society can still be heard out loud Yet, at the beginning of the 21st century, rock and the music industry faced a new crisis. Since emerging in the 1950s, rock has been the dominant form of popular music Among the bands associated with the movement was pearl jam, whose bleak songs and passionate performances made them early grunge superstars.
It is also called rock and roll. On a large scale, rock bodies exhibit physical and chemical variations and structural features Furthermore, conditions such as extended length of time, confining pressure, and subsurface fluids affect the rates of change of deformation.
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