Select a for allies in world war i. select c for central powers in world war i. great britain france germany united states russia austria-hungary

World War I Allies: Great Britain, France, United States, Russia

World War I Central Powers: Germany, Austria-Hungary

-The First World War, formerly called the Great War, was a warlike confrontation centered on Europe that began on July 28, 1914 and ended on November 11, 1918, when Germany accepted the conditions of the armistice.

All the great industrial and military powers of the time were involved, divided into two alliances. On the one hand, the Triple Alliance formed by the Central Powers: the German Empire and Austria-Hungary. Italy, which had been a member of the Triple Alliance together with Germany and Austria-Hungary, did not join the Central Powers, as Austria, against the agreed terms, was the aggressor nation that unleashed the conflict. On the other side was the Triple Entente, formed by the United Kingdom, France and the Russian Empire. Both alliances underwent changes and there were several nations that ended up entering the ranks of one or another side as the war progressed: Italy, the Empire of Japan and the United States joined the Triple Entente, while the Ottoman Empire and the Kingdom of Bulgaria joined the Central Powers. More than 70 million soldiers, of which 60 million were Europeans, mobilized and fought in the then greatest war in history.

c. taught scientists many new things about the earth, but not other planets.

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