Mark three ways the attitudes of the United States changed after World War I.

- Many Americans took a more global view of the role of the United States in world affairs.

- Some Americans modified their understanding of the policies and motives of European powers, particularly of allied countries.

- However, the United States returned to isolationism after the war, an attitude reflected in the refusal to join the League of Nations and ratify the Treaty of Versailles.

Explanation:

answer; ///i believe that the correct answer is refrigerants,(like r12) and aerosol

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.