Rainfall that contains too much sulfur or carbon dioxide is called, which is making the ocean too acidic for many types of life.

a. i. only is correct.

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).