The Richest Farming Soils That Form Under the Grasslands of Central

Multiple Choice

The richest farming soils that form under the grasslands of central North America and under moist deciduous forests are the:

A) spodosols and oxisols.
B) aridisols and mollisols.
C) mollisols and alfisols.
D) sunisols and texsols.
E) oxisols and ultisols.