Areas of shallow wetlands called prairie potholes were formed by what physical process?
A) Sheet erosion
B) Rill erosion
C) Aeolian processes
D) Glacial processes
Question 2
The Nebraska Sand Hills, the largest dune field in North America, was formed by what physical process?
A) Sheet erosion
B) Rill erosion
C) Aeolian processes
D) Glacial processes