How did John Wesley Powell and John Muir contribute to the environmental movement? What did Theodore Roosevelt propose?

Read the following sources and answer the questions.

Ch 15, p. 455-457 and Ch 19, p. 565 from the textbook, America’s History
Document 19-5, p. 410-411, “President Calls for Conservation of Natural Resources,” Sources for America’s History
1. What environmental changes were coming to the western United States?

2. How did John Wesley Powell and John Muir contribute to the environmental movement? What did Theodore Roosevelt propose?

3. How are today’s issues concerning the environment similar to those in the Gilded Age and Progressive Era? Are there differences?