What geologic event caused the dry, flat physical landscape of the prairie?

Tectonic plates under the Earth shifted

Moist air helped prarie grass thrive

Wind storms in the Midwest flattened the land

Fires in the Midwest scourged the soil

1 answer

The dry, flat physical landscape of the prairie is primarily the result of tectonic plates under the Earth shifting. This geological process contributed to the formation of the plains, creating the flat topography characteristic of prairie regions. Other factors like climate, soil types, and disturbances such as fires, also play a role in shaping the prairie ecosystem, but the flatness itself is largely due to tectonic activity over geological time scales.