President Theodore Roosevelt was a pioneer in conservation and established various measures to protect America's natural resources.Which is directly associated with his efforts to conserve nature and wildlife?

The Antiquities Act of 1906 gave the president authority to designate national monuments and protect historically or scientifically important public lands. Theodore Roosevelt used it to safeguard natural and wildlife areas, including Devils Tower and the Grand Canyon. The Square Deal was his broader domestic program, while the Homestead Act and National Park Service Organic Act are not directly associated with his conservation efforts.

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