The theory which Earth Scientists have attempted to explain the formation of physical features is called DO D000

b.

developed countries have tended to improve the environment, while developing countries have tended to damage it.

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). 

d.

ell thats all i know

explanation: