Final answer:
The Great Plains of North America were covered in wild grasses and inhabited by indigenous tribes that adopted a migratory lifestyle for hunting. The region's environment required adaptations for agriculture due to the dense sod covering the plains.
Explanation:
Before European settlers arrived, the Great Plains of North America were predominantly wild grasses.
The indigenous people of the region, such as the Sioux, Cheyenne, and Lakota Sioux, maintained migratory lifestyles and were hunters of bison and other game. They adopted horses for hunting, which changed their way of life significantly.
The land of the Great Plains featured short grasses and was not suitable for agriculture without significant modifications like using steel plows to remove the dense root tangles known as sod that made farming challenging.
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