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be in poor condition, while in the 1930s, 36 percent
had inadequate vegetation cover.
Which of the following, if true, most seriously weakens
the argument above?
In the western United States, private land is
typically more lush than public land, and cattle that
graze on private land can be fattened more quickly.
Since the 1930s, recreational users of public
land in the western United States have caused more
environmental damage than have the cattle grazing there.
During the 1930s, an unusually destructive drought
prevailed throughout the region where most public lands
in tile western United States are located.
Ranchers who use public land in the western United
States pay only a fraction of what is paid by those who
lease comparable private land for grazing.
The amount of land purchased by the United States
government since the 1930s is relatively insignificant.
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