Final answer:
John Muir and Gifford Pinchot supported Roosevelt's progressive agenda by advocating for environmental conservation. They worked to establish national parks, national monuments, and national forests.
Step-by-step explanation:
John Muir and Gifford Pinchot supported Roosevelt’s progressive agenda by advocating for environmental conservation. Both Muir and Pinchot were influential conservationists who believed in the protection and preservation of natural resources for future generations. Roosevelt appointed Pinchot as the first chief of the newly created U.S. Forestry Service, and together they worked to establish national parks, national monuments, and national forests. Their efforts quadrupled the nation's total forest reserves and set aside millions of acres of public land for regulated use.
John Muir and Gifford Pinchot supported Roosevelt's progressive agenda by advocating for environmental conservation, contributing to the establishment of many conservation areas and policies.
John Muir and Gifford Pinchot supported Roosevelt’s progressive agenda chiefly by advocating for environmental conservation. They were instrumental figures behind Roosevelt's landmark conservation efforts. Pinchot, as the first chief of the U.S. Forestry Service, executed policies for the scientific management of government lands, while Muir, founder of the Sierra Club, influenced Roosevelt's policies through his advocacy for the preservation of wilderness for its innate value.
John Muir and Gifford Pinchot supported Roosevelt's progressive agenda by advocating for environmental conservation. They worked to establish national parks, national monuments, and national forests.