The Dissected Till mostly comprise...?
A. forests.
B. mountains.
C. river valleys.
D. hill country.
D. hill country.
The Dissected Till Plains are regions of rolling hills that result from the erosion of glacial till. They are not characterized by high mountains, deep river valleys, or large forests (though forests may exist within the area). Instead, they are made up of moderate relief and are part of the larger Central Lowland physiographic region of the United States, often associated with agriculture due to the fertile soil left behind by glacial activity.