Wait activity is the best example of a concurrent power shared by states and the federal government ?

The activity that is the best example of concurrent power shared by states and the federal government is the power to charge tax.

Explanation:

Current powers are those shared between the federal government and the state government. These powers can happen simultaneously in a state or province without one overlapping the other. An example of this is the power to collect taxes that is done simultaneously in a territory and is a power shared between the federal government and the state government.

The explanation is below

Explanation:

1. Progressivism as it applies to the early 20th century.

The is the period in between 1890s to the 1920s in the history of US often referred to as the Progressive Era, it is characterized by its intense social and political reform aimed at making progress for the betterment of the society.

2. Who were the Progressives?

Progressives includes the workers, and consumers; mainly the middle to lower class or income earners of the society.

3. Why the Progressives are a difficult group to categorize under one heading?

This is because even though, the progressives embrace modernity and progress, some of them pursued a racial agenda, which led to the segregation of the federal government, thereby leading to promoted discriminatory policies and espoused intolerant ideas.

Hence, it is difficult to categorize the group under one heading as there are sometimes conflicting ideals and beliefs among them.