Final answer:
Muckraking is the form of journalism where immoral and unfair business practices were exposed.
Step-by-step explanation:
The form of journalism where immoral and unfair business practices were exposed is called muckraking. This type of journalism emerged in the late 19th and early 20th centuries during the Progressive Era in the United States. Muckraking journalists aimed to bring attention to social and political issues, and played a crucial role in exposing corruption and advocating for reforms.
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