R.O.C.K.

R.O.C.K. can refer to several distinct concepts, most notably:

• Rock (Geology): In geology, rock is a naturally occurring solid aggregate of one or more minerals. Rocks are categorized by their mineral and chemical composition, the way they are formed, and their texture. The three major types of rocks are igneous, sedimentary, and metamorphic. Igneous rocks are formed from cooled magma or lava. Sedimentary rocks are formed from sediments that are compacted and cemented together. Metamorphic rocks are formed when existing rocks are transformed by heat, pressure, or chemical processes.

• Rock Music: A genre of popular music that originated in the United States in the 1950s, evolving from rock and roll. Rock music is characterized by a strong beat, often featuring electric guitars, bass, drums, and vocals. Over time, it has spawned a wide range of subgenres, including hard rock, alternative rock, punk rock, and heavy metal.

• Republic of China (ROC): An abbreviation for the Republic of China, a state entity established in 1912 and subsequently limited to the island of Taiwan and associated islands since 1949, following the Chinese Civil War. It is also referred to as Taiwan. The ROC government considers itself the legitimate government of China, although this claim is disputed by the People's Republic of China (PRC).