I'm not sure 100% what exactly this question is asking, but I know World War 1 was the first war to include Gas masks and Chemical warfare, so that is more than likely the answer.
Answer:
the second one needs a comma after the finally
An (Electoral Map) is a visual representation of how states vote in an election so named for representing the parties.
Answer: C
Explanation:
As a president, Andrew Johnson offered amnesty to Southerners who pledged their loyalty to the United States with the aim to end the rebellion, restore the authority of the United States, and bring people back to loyalty He made a proclamation offering amnesty to certain people who had directly or indirectly participated in the rebellion.
