Answer:
They were reform - minded journalists.
Explanation:
Muckrakers were exposing some sord of political, child labor, workers safety issues and that's the main reason why they had impact on American life. As reform - minded journalists they were investigative reporters and they were writing all about their investigation.
Muckrakers were attractive in Progressive Era (1890-1920). Nowadays, we can find some Muckraker articles. In these articles we can find stories about corruption and wealthy businessmen.
Some of the Muckrakers were: John Spargo, Lincoln Steffens, Ida Wells, Upton Sincilar, Jacob Riis...
They risked their lives by writing those kinds of articles but they did bring improvements.
I assume you mean WWI as there were only two. In WWI Americans participated. Many of the able men went to war. While the women, children, and disabled stayed and helped with the war effort. Most of the effort back home was from the women.
the answer to this question would be false
Advanced: Countries came a long way from the beginning of time