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[[File:Cycle of rocks 2.png|thumb|The main rock types]] ...geographic attribution,''' in [[geology]] refers to the origins or sources of particles within [[sediment]] and [[Sedimentary rock|sedimentary rocks]].<r ...

{{History of science and technology in China}} ...atural phenomena which can be found in the [[human body]], the environment of the [[Earth|world]], and the immediate [[Solar System]]. They also discover ...