How much of the annual rainfall in the United States becomes runoff on average? 10 percent 50 percent 90 percent 33 percent

In a more natural or undeveloped area, the direct runoff would be considerably less. In the United States, an average of some 70 percent of the annual precipitation returns to the atmosphere by evaporation from land and water surfaces and by transpiration from vegetation.

Explanation:

33%

Explanation:Because although it rains quite a lot but 90 percent means it rains at almost all hours of the day, 50 percent means it rains 182.5 days of the year and 10 percent is way too low because we would be in a water drought if it rained that little, and all the plants would be dead

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).