Which soil horizon contains poorly weathered regolith?

Question

Quizplus · Accepted Answer

The C horizon is the soil layer that contains poorly weathered regolith, which is unconsolidated material that has not undergone much chemical or physical weathering. This layer is typically located below the B horizon and is composed of larger rocks and minerals that have not yet been broken down. The A, O, and E horizons all contain varying levels of organic matter, minerals, and weathered materials, but not poorly weathered regolith like the C horizon.

Which Soil Horizon Contains Poorly Weathered Regolith