The soils of grassland ecosystems, characterized by a thick, dark surface horizon, come under which soil order?

 

A. Alfisols

B. Mollisols

C. Spodosols

D. Histosols

E. Inceptisols

Key Notes

Mollisols are typical grassland soils distinguished by a thick, dark, organic-matter-rich surface horizon known as the mollic epipedon. This horizon develops due to dense grass root systems and high base saturation, making Mollisols among the most fertile soils for agriculture.