The progressive era was responsible for implementing reforms in america's labor laws. which reform occurred during the progressive era?

The Progressive Era was a period of widespread social activism and political reform across the United States, from the 1890s to the 1920s.The main objectives of the Progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and corruption in government. During this era Employers accepted the concept of an eight-hour day. 

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions