How did the work of Upton Sinclair lead to changes that protected society?

To highlight the appalling working conditions in the meat-packing industry, Upton Sinclair wrote The Jungle. The nation was surprised by his explanation of diseased, rotting, and tainted beef, contributing to stricter federal food safety regulations. A significant political effort had arisen in the United States by the start of the 20th century.

Explanation:

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answer; rarely listen to the child's point of view;

answer; thin-slice judgments;