Answer:
1.WWI was fought between 1914 and 1918 while WWII was fought between 1939 and 1945.
2.The two warring groups of WWI were the Allied Powers and the Central Powers while the two warring groups of WWII were The Allies and The Axis powers.
3.WWI was triggered by the assassination of the archduke of Austria-Hungary while WWII was triggered by the bitterness over the outcome of WWI which was used by Adolf Hitler to lead Germany to war.
4.While WWI was fought in the lines of trenches, WWII was fought in a broader scale using modern weapons and methods including the atomic bomb.
Step-by-step explanation:
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