Here's why:
* Regolith is the loose, unconsolidated material that covers bedrock. This material is formed by the weathering of bedrock, which can be physical, chemical, or biological.
* Soil is a specific type of regolith that has been further modified by biological activity, creating a layer that can support plant life.
So, while regolith is a broader term encompassing all weathered rock material, soil is a specialized type of regolith that has been further processed and enriched.
