What characteristic does a mollic horizon (Bhs) have in comparison to a spodic horizon (Bs)?

A mollic horizon is characterized by a higher organic matter content compared to a spodic horizon. Mollic horizons are typically found in grassland soils and are formed under conditions that favor the accumulation of organic matter, such as in areas with significant plant growth and limited decomposition. This high organic matter content contributes to a rich, dark coloration and enhances the soil's fertility, cation exchange capacity, and moisture retention.

In contrast, a spodic horizon is usually found in forested soils that are typically more acidic. It forms under leaching conditions where organic matter, iron, and aluminum are translocated from upper horizons and accumulate beneath. This process leads to lower organic matter content in the spodic horizon compared to the mollic horizon.

The distinction in organic matter content is crucial because it affects soil health, fertility, and the ability of the soil to support plant life. Therefore, the correct answer emphasizes the significant difference in organic matter accumulation between these two types of horizons.