Sample r is highly desired in the energy industry because it is the most “clean” variety. using your knowledge of metamor¬phic processes, how do you think this rock becomes so “clean” compared to its protolith

c people in 46 occupations

chinese civil war took place over a long period of time between 1927 and 1950. the war was interrupted when japan invaded china in 1936 and by world war ii. the war was fought between the nationalist government of china, also called the kuomintang (kmt), and the communist party of china (cpc).