Answer: C, the Jordan River is north of the Dead Sea in Israel.
Explanation: The river flows from Israel and Jordan into the Dead Sea.
Trench Warfare was a form of military conflict in which opposing sides fought one another from trenches facing one another. WW1 warfare introduced the first large-scale use of chemical weapons as well as bringing in airplanes and tanks for the first time.
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It was called isolationism :D
The Wagner Act gave labor unions government support. It created a system to arbitrate disputes between unions and employers