What us the role of decomposers in a comunity

The cause of WW2 was the following:

Treaty of Versailles. The Treaty of Versailles ended World War I between Germany and the Allied Powers

Japanese Expansion

Fascism

Hitler and the Nazi Party

Appeasement

Great Depression

Events that occurred: The Nazi party had attacked and gained half of Europe under the control of Hitler there plan was to eradicate the Jews a race they claimed was inferior to the Germans and killed anyone that helped them.

The effects of WW2: The immediate impact of WWII was apparently quite destructive for the countries involved, especially so for those on the losing side—Germany, Japan, and Italy—presumably reflecting their much larger losses in both physical and human capital during the war

Explanation: More effects were: Germany was divided evenly into four sections each under the watch of the 4 major superpowers (Or Allies) at the time. Nazis faced many charges and time in prison while others were charged and put to death.