Which factors was the most affecting humans lives

Which progressive reform was least related to the causes and effects of world war i? o legislation limiting the use of child labor o establishing 8-hour workdays for railroad workers o reducing tariffs on imported goods o expanding women's rights and the right to vote

Which of the following was a reason why the loss of alsace and lorraine to germany was a major blow to france?

What clause(s) expanded the power of the executive branch, especially relating to foreign policy?