Why do you think geographers divide the eastern U.S into four subregions?

Question

I'm very confused on the question

Answer 1

to better understand and explain the differences in culture, economy, history, climate, and physical geography across the area. The subregions help simplify this large, diverse area by grouping places with similar characteristics.

For example:

1. New England is known for rocky soil, colonial history, and small towns.
2. The Mid-Atlantic = big cities, major ports, and industrial centers.
3. The South = warmer climate, agricultural roots, and a distinct cultural identity.
4. And The Midwest is often called "America’s Heartland," with fertile plains and a strong farming and manufacturing base.

Breaking the region into subregions makes it easier to study patterns in population, land use, economics, and development.