About what percentage of land on the planet is set aside as a preserve of some type?
1 percent
6 percent
11 percent
15 percent

15%

Explanation:

thanks to Theodore Roosevelt, in the late 1800's, he was an advid outdoorsmen. he realized how important it was to save the natural beauty for future generations to experience (Yellowstone Park), other states were soon to follow. they saw the potential for added income to the states, (Arizona, Nevada, etc)

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