In order to represent our three-dimensional Earth in a two-dimensional image, we must use a .

c

explanation:

hope it

the anwser is a) to prevent military conflict

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.