What new technique of warfare was introduced in world war i?

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 significant event in texas history occurred in 1876?

Who believed that the best economic system was on in which businesses compete to gain profit with minimal or no government control