Which was NOT a new weapon introduced during WWI?

atomic bomb
airplane
poison gas

Atomic Bomb

Explanation:

The airplane had made its way as a machine of war in WW1 and chemical warfare was also used such as, "Mustard Gas." The Atomic bomb was not developed till the late stages of WW2.

the court ruled that a state law that banned abortions (except to save the life of the mother) was unconstitutional

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united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).