What impact did the Progressive Era have on child labor? Check all that apply. National child labor laws were declared unconstitutional. Child labor increased significantly across the country. Several states passed laws prohibiting child labor. Lewis Hine photographed child laborers to raise awareness. The National Child Labor Committee was formed.

the answer would be option c. the chief result of u.s. participation in world war i is that, the u.s. forces ended the stalemate and led to an allied victory. after the us joined wwi, the allies had the forces they need to triumph. hope this is the answer that you are looking for.

explanation:

mark brainliest and have a great day!

b) the confederacy had to pay all union war expenses.

nothing did. japan is wierd and always was.