How did Samuel Hopkins adams contribute to the reform movement?

One of the so-called muckrakers of the period, Adams contributed to Collier's, the National Weekly in 1905 a series of articles exposing quack patent medicines, followed by The Great American Fraud (1906), which furthered the passage of the Pure Food and Drug Act in 1906. ...

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c.) the country needed a stronger central government.

equal area projections

equal-area projection. a projection in which regions on the earth's surface that are of equal area are represented as equal.